Tootfinder

Oh man, Sony closed London Studio?!
https://gizmodo.com/sony-playstation-layoffs-london-studio-closure-1851289631

PlayStation Cancels Multiple Games Amid Massive Job Cuts
Sony announces a reduction of workforce across its first-party studios, including the closure of London Studio

Cars, sugar and cruises: How the Port of Baltimore closure could hurt the economy
https://www.aol.com/cars-sugar-cruises-port-baltimore-185720116.html

Cars, sugar and cruises: How the Port of Baltimore closure could hurt the economy
The bridge collapse that has indefinitely halted the flow of ships in and out of the Port of Baltimore could hurt the local economy, strain supply chains and...

From Translink
🧵/4
King George SkyTrain Station closure begins tomorrow for six weeks
Full closure necessary for essential track maintenance
Starting Saturday, April 27, King George SkyTrain Station will be closed for approximately six weeks to complete essential maintenance work. During this time, there will be no SkyTrain service to or from King George Station. The Expo Line in Surrey will temporarily end at Surrey Central Station.

Combinatorics of the integral closure of edge ideals of strong quasi-n-partite graphs
Monica La Barbiera, Roya Moghimipor
https://arxiv.org/abs/2403.16109 …

Combinatorics of the integral closure of edge ideals of strong quasi-n-partite graphs
Combinatorial properties of some ideals related to strong quasi-n-partites graphs are examined. We prove that the edge ideal of a strong quasi-n-partite graph is not integrally closed and we give an expression for its integral closure. Moreover, we are able to determine the structure of the ideals of vertex covers for the edge ideals associated to a strong quasi-n-partite graph.

Machine-Learned Closure of URANS for Stably Stratified Turbulence: Connecting Physical Timescales & Data Hyperparameters of Deep Time-Series Models
Muralikrishnan Gopalakrishnan Meena, Demetri Liousas, Andrew D. Simin, Aditya Kashi, Wesley H. Brewer, James J. Riley, Stephen M. de Bruyn Kops
https://arxiv.org/abs/2404.16141…

Machine-Learned Closure of URANS for Stably Stratified Turbulence: Connecting Physical Timescales & Data Hyperparameters of Deep Time-Series Models
We develop time-series machine learning (ML) methods for closure modeling of the Unsteady Reynolds Averaged Navier Stokes (URANS) equations applied to stably stratified turbulence (SST). SST is strongly affected by fine balances between forces and becomes more anisotropic in time for decaying cases. Moreover, there is a limited understanding of the physical phenomena described by some of the terms in the URANS equations. Rather than attempting to model each term separately, it is attractive to …

This https://arxiv.org/abs/2202.04452 has been replaced.
link: https://scholar.google.com/scholar?q=a

Sufficient conditions for a problem of Polya
Let $α$ be a non-zero algebraic number. Let $K$ be the Galois closure of $\mathbb{Q}(α)$ with Galois group $G$ and $\bar{\mathbb{Q}}$ be the algebraic closure of $\mathbb{Q}$. In this article, among the other results, we prove the following. If $f\in \bar{\mathbb{Q}}[G]$ is a non-zero element of the group ring $\bar{\mathbb{Q}}[G]$ and $α$ is a given algebraic number such that $f(α^n)$ is a non-zero algebraic integer for infinitely many natural numbers $n$, then $α$ is an algebraic integer…

Branch-depth is minor closure of contraction-deletion-depth
Marcin Bria\'nski, Daniel Kr\'a\v{l}, Krist\'yna Pek\'arkov\'a
https://arxiv.org/abs/2402.16215

Branch-depth is minor closure of contraction-deletion-depth
The notion of branch-depth for matroids was introduced by DeVos, Kwon and Oum as the matroid analogue of the tree-depth of graphs. The contraction-deletion-depth, another tree-depth like parameter of matroids, is the number of recursive steps needed to decompose a matroid by contractions and deletions to single elements. Any matroid with contraction-deletion-depth at most d has branch-depth at most d. However, the two notions are not functionally equivalent as contraction-deletion-depth of matr…

This https://arxiv.org/abs/2104.10206 has been replaced.
link: https://scholar.google.com/scholar?q=a

Homotopy, homology, and persistent homology using closure spaces
We develop persistent homology in the setting of filtrations of (Cech) closure spaces. Examples of filtrations of closure spaces include metric spaces, weighted graphs, weighted directed graphs, and filtrations of topological spaces. We use various products and intervals for closure spaces to obtain six homotopy theories, six cubical singular homology theories, and three simplicial singular homology theories. Applied to filtrations of closure spaces, these homology theories produce persistence …

❝It was an incredibly challenging yet inevitable decision to close the Chicago plant.❞ https://www.nbcchicago.com/news/local/the-chocolate-smell-in-fulton-river-district-could-fade-away-s…

The chocolate smell in Fulton River District could fade away soon as Blommer announces plant closure
Blommer Chocolate Company, a nearly century-old Chicago institution on Friday announced the closure of its Fulton River District manufacturing plant, which for decades has sent the smells of chocolate wafting throughout the area.

An article in the Guardian by Oliver Millman https://amp.theguardian.com/environment/2024/mar/20/nuclear-plant-closure-carbon-emissions-new-york has been going around, claiming that New York replaced the power from the retir…

High-order accurate positivity-preserving and well-balanced discontinuous Galerkin schemes for ten-moment Gaussian closure equations with source terms
Jiangfu Wang, Huazhong Tang, Kailiang Wu
https://arxiv.org/abs/2402.15446

High-order accurate positivity-preserving and well-balanced discontinuous Galerkin schemes for ten-moment Gaussian closure equations with source terms
This paper proposes novel high-order accurate discontinuous Galerkin (DG) schemes for the one- and two-dimensional ten-moment Gaussian closure equations with source terms defined by a known potential function. Our DG schemes exhibit the desirable capability of being well-balanced (WB) for a known hydrostatic equilibrium state while simultaneously preserving positive density and positive-definite anisotropic pressure tensor. The well-balancedness is built on carefully modifying the solution stat…

Build Gnome apps with Swift:
https://swift.org/blog/adwaita-swift/

Writing GNOME Apps with Swift
Swift is well-suited for creating user interfaces thanks to the clean syntax, static typing, and special features making code easier to write. Result builders, combined with Swift’s closure expression syntax, can significantly enhance code readability.

muRelBench: MicroBenchmarks for Zonotope Domains
Kenny Ballou, Elena Sherman
https://arxiv.org/abs/2404.16243 https://arxiv.org/pdf/2…

muRelBench: MicroBenchmarks for Zonotope Domains
We present \texttt{muRelBench}, a suite of synthetic benchmarks for weakly-relational abstract domains and their operations. For example, the benchmarks can support experimental evaluations of proposed algorithms such as domain closure.

Functional Closure Properties of Finite $\mathbb{N}$-weighted Automata
Julian D\"orfler, Christian Ikenmeyer
https://arxiv.org/abs/2404.14245 https://…

Functional Closure Properties of Finite $\mathbb{N}$-weighted Automata
We determine all functional closure properties of finite $\mathbb{N}$-weighted automata, even all multivariate ones, and in particular all multivariate polynomials. We also determine all univariate closure properties in the promise setting, and all multivariate closure properties under certain assumptions on the promise, in particular we determine all multivariate closure properties where the output vector lies on a monotone algebraic graph variety.

#Iowa student journalists buy two local papers saving them from closure

Student journalists from the Daily Iowan, a non-profit paper, have purchased two local newspapers saving them from shutting down. Students from the University of Iowa will help both papers cover their communities.

Iowa student journalists buy two local papers saving them from closure
Student journalists from the Daily Iowan, a non-profit paper, have purchased two local newspapers saving them from shutting down. Students from the University of Iowa will help both papers cover their communities.

Machine-Learned Closure of URANS for Stably Stratified Turbulence: Connecting Physical Timescales & Data Hyperparameters of Deep Time-Series Models
Muralikrishnan Gopalakrishnan Meena, Demetri Liousas, Andrew D. Simin, Aditya Kashi, Wesley H. Brewer, James J. Riley, Stephen M. de Bruyn Kops
https://arxiv.org/abs/2404.16141…

Machine-Learned Closure of URANS for Stably Stratified Turbulence: Connecting Physical Timescales & Data Hyperparameters of Deep Time-Series Models
We develop time-series machine learning (ML) methods for closure modeling of the Unsteady Reynolds Averaged Navier Stokes (URANS) equations applied to stably stratified turbulence (SST). SST is strongly affected by fine balances between forces and becomes more anisotropic in time for decaying cases. Moreover, there is a limited understanding of the physical phenomena described by some of the terms in the URANS equations. Rather than attempting to model each term separately, it is attractive to …

This https://arxiv.org/abs/2202.04452 has been replaced.
link: https://scholar.google.com/scholar?q=a

Sufficient conditions for a problem of Polya
Let $α$ be a non-zero algebraic number. Let $K$ be the Galois closure of $\mathbb{Q}(α)$ with Galois group $G$ and $\bar{\mathbb{Q}}$ be the algebraic closure of $\mathbb{Q}$. In this article, among the other results, we prove the following. If $f\in \bar{\mathbb{Q}}[G]$ is a non-zero element of the group ring $\bar{\mathbb{Q}}[G]$ and $α$ is a given algebraic number such that $f(α^n)$ is a non-zero algebraic integer for infinitely many natural numbers $n$, then $α$ is an algebraic integer…

❝It was an incredibly challenging yet inevitable decision to close the Chicago plant.❞ https://www.nbcchicago.com/news/local/the-chocolate-smell-in-fulton-river-district-could-fade-away-s…

The chocolate smell in Fulton River District could fade away soon as Blommer announces plant closure
Blommer Chocolate Company, a nearly century-old Chicago institution on Friday announced the closure of its Fulton River District manufacturing plant, which for decades has sent the smells of chocolate wafting throughout the area.

When considering the future of #BBC Radio 4 #longwave service, many people seem to forget there are a couple #mediumwave fillers active. Would we allow them to let go too?
The answer is... yes -- and…

A journalist tells how Jimmy Finkelstein wooed her to The Messenger, reassured staff two months before closure, and left her without a promised severance (Amie Parnes/Vanity Fair)
https://www.vanityfair.com/news/amie-parnes-jimmy-finkelstein-the-messeng…

Build Gnome apps with Swift:
https://swift.org/blog/adwaita-swift/

Writing GNOME Apps with Swift
Swift is well-suited for creating user interfaces thanks to the clean syntax, static typing, and special features making code easier to write. Result builders, combined with Swift’s closure expression syntax, can significantly enhance code readability.

The Hausdorff dimension of the generalized Brunner-Sidki-Vieira Groups
Jorge Fari\~na-Asategui, Mikel E. Garciarena
https://arxiv.org/abs/2403.16876 https:…

The Hausdorff dimension of the generalized Brunner-Sidki-Vieira Groups
We compute the Hausdorff dimension of the closure of the generalized Brunner-Sidki-Vieira group acting on the $m$-adic tree for $m\ge 2$, providing the first examples of self-similar topologically finitely generated closed subgroups of transcendental Hausdorff dimension in the group of $m$-adic automorphisms.

This https://arxiv.org/abs/2211.11168 has been replaced.
link: https://scholar.google.com/scholar?q=a

Total positivity in twisted product of flag varieties
We show that the totally nonnegative part of the twisted product of flag varieties of a Kac-Moody group admits a cellular decomposition, and the closure of each cell is a topological manifold with boundary. We also establish explicit parameterizations of each totally positive cell. In the special cases of double flag varieties and braid varieties, we show that the totally nonnegative parts are regular CW complexes homeomorphic to closed balls. Moreover, we prove that the link of any totally n…

Q&A with ex-CEO of CrowdTangle Brandon Silverman about the founding principle of the research tool, Meta's decision to close it in an election year, and more (Chris Stokel-Walker/Fast Company)
https://www.fast…

CrowdTangle’s former CEO has questions about Meta’s decision to close the research tool in an election year
CrowdTangle has been a tool for researchers to track disinformation and its closure by Meta couldn’t come at a worse time, says former CEO Brandon Silverman.

Density in weighted Bergman spaces and Bergman completeness of Hartogs domains
Bo-Yong Chen, John Erik Forn{\ae}ss, Jujie Wu
https://arxiv.org/abs/2402.16494

Density in weighted Bergman spaces and Bergman completeness of Hartogs domains
We study the density of functions which are holomorphic in a neighbourhood of the closure $\overlineΩ$ of a bounded non-smooth pseudoconvex domain $Ω$, in the Bergman space $ H^2(Ω,φ)$ with a plurisubharmonic weight $φ$. As an application, we show that the Hartogs domain $$ Ω_α: = \{(z,w) \in D\times \C: |w|< δ^α_D(z) \}, \ \ \ α>0, $$ where $D\subset \subset \C$ and $δ_D$ denotes the boundary distance, is Bergman complete if and only if every boundary point of $D$ is non…

Inverse Spectral Problems for Collapsing Manifolds II: Quantitative Stability of Reconstruction for Orbifolds
Matti Lassas, Jinpeng Lu, Takao Yamaguchi
https://arxiv.org/abs/2404.16448

Inverse Spectral Problems for Collapsing Manifolds II: Quantitative Stability of Reconstruction for Orbifolds
We consider the inverse problem of determining the metric-measure structure of collapsing manifolds from local measurements of spectral data. In the part I of the paper, we proved the uniqueness of the inverse problem and a continuity result for the stability in the closure of Riemannian manifolds with bounded diameter and sectional curvature in the measured Gromov-Hausdorff topology. In this paper we show that when the collapse of dimension is $1$-dimensional, it is possible to obtain quantita…

Hundreds of Small Presses Just Lost Their Distributor. Now What? - The New York Times
https://www.nytimes.com/2024/04/17/books/small-press-distribution-closure.html

Hundreds of Small Presses Just Lost Their Distributor. Now What?
A nonprofit that distributed books for many of the country’s small presses has closed, and the fallout could affect the publishing industry in ways both big and small.

This https://arxiv.org/abs/2307.08221 has been replaced.
link: https://scholar.google.com/scholar?q=a

NDT-Map-Code: A 3D global descriptor for real-time loop closure detection in lidar SLAM
Loop-closure detection, also known as place recognition, aiming to identify previously visited locations, is an essential component of a SLAM system. Existing research on lidar-based loop closure heavily relies on dense point cloud and 360 FOV lidars. This paper proposes an out-of-the-box NDT (Normal Distribution Transform) based global descriptor, NDT-Map-Code, designed for both on-road driving and underground valet parking scenarios. NDT-Map-Code can be directly extracted from the NDT map wit…

This https://arxiv.org/abs/2401.06428 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

First Exploration of Monopole-Driven Shell Evolution above the N = 126 shell closure: new Millisecond Isomers in 213Tl and 215Tl
Isomer spectroscopy of heavy neutron-rich nuclei beyond the N=126 closed shell has been performed for the first time at the Radioactive Isotope Beam Factory of the RIKEN Nishina Center. New millisecond isomers have been identified at low excitation energies, 985.3(19) keV in 213Tl and 874(5) keV in 215Tl. The measured half-lives of 1.34(5) ms in 213Tl and 3.0(3) ms in 215Tl suggest spins and parities 11/2- with the single proton-hole configuration h11/2 as leading component. They are populated …

3/n
these include cable installations, elevator inspections, asset repairs, and station cleaning. The station is expected to reopen in mid-June.

Buses will continue serving King George Station during the closure, with some changes:

Additional buses will run every 15 minutes between King George and Surrey Central stations from 6am & 9am on weekdays.
Bus routes that normally end at King George Station will stop at the station & then extend northbound …

On commutators of square-zero Hilbert space operators
Laurent W. Marcoux, Heydar Radjavi, Yuanhang Zhang
https://arxiv.org/abs/2402.15676 https://

On commutators of square-zero Hilbert space operators
Let $\mathcal{H}$ be a complex, separable Hilbert space, and set $\mathfrak{c}($NIL$_2)=\{ MN - NM : N, M \in \mathcal{B}(\mathcal{H}), M^2 = 0 = N^2 \}$. When $\dim\, \mathcal{H}$ is finite, we characterise the set $\mathfrak{c}($NIL$_2)$ and its norm-closure CLOS$(\mathfrak{c}($NIL$_2))$. In the infinite-dimensional setting, we characterise the intersection of CLOS$(\mathfrak{c}($NIL$_2))$ with the set of biquasitriangular operators, and we exhibit an index obstruction to belonging to CLOS$(\…

A journalist tells how Jimmy Finkelstein wooed her to The Messenger, reassured staff two months before closure, and left her without a promised severance (Amie Parnes/Vanity Fair)
https://www.vanityfair.com/news/amie-parnes-jimmy-finkelstein-the-messeng…

This https://arxiv.org/abs/2312.01230 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On containment of trace ideals in ideals of finite homological dimension
Motivated by recent result of Pérez and R.G. on equality of test ideal of module closure operation and trace ideal, and the well-known result by Smith that parameter test ideal cannot be contained in parameter ideals, we study the obstruction of containment of trace ideals in ideals of finite projective (or injective) dimension. One of our results says that the trace ideal of any big Cohen--Macaulay module over a Gorenstein complete local domain cannot be contained in any ideal of finite proje…

This https://arxiv.org/abs/2310.13880 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

An Elementary Problem in Galois Theory about the Roots of Irreducible Polynomials
For a field $K$, and a root $α$ of an irreducible polynomial over $K$ (in some algebraic closure) the number of roots of $f(x)$ lying in $K(α)$ is studied here. Given such an $f(x)$ of degree $n$ for which $r$ of the roots are i n $K(α)$, we describe a construction that yields, for $d\ge2$, irreducible polynomials of degree $nd$ and with exactly $rd$ of the roots in the field generated by any one root of those polynomials. Our results are valid for all number fields and possibly some more pe…

#Birdlife international Closure of English and Scottish waters to sandeel fishing provides a lifeline for #NorthSea #seabirds

This https://arxiv.org/abs/2402.12313 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

A new approach to universal $F$-inverse monoids in enriched signature
We show that the universal $X$-generated $F$-inverse monoid $F(G)$, where $G$ is an $X$-generated group, introduced by Auinger, Szendrei and the first-named author, arises as a quotient inverse monoid of the Margolis-Meakin expansion $M(G, X\cup \overline{G})$ of $G$, with respect to the extended generating set $X\cup \overline{G}$, where $\overline{G}$ is a bijective copy of $G$ which encodes the $m$-operation in $F(G)$. The construction relies on a certain closure operator on the semilattice …

It’s always shocking to me to see so much patriarchy embedded in the relationships of straight non-wingnut people of my own age and younger. Guys who depend on their partners to handle the bulk of fundamentally mutual duties (cooking, cleaning, laundry, childcare, etc.) but who would be ashamed to actually acknowledge that they do so for any but the most pragmatic of reasons. Dads who never seem to need to handle a sick kid or an inconvenient random day of school closure.

Newsom requests federal disaster funds as chinook salmon season faces likely closure | The Hill
https://thehill.com/homenews/state-watch/4588775-california-newsom-federal-disaster-fund-request-c…

Newsom requests federal disaster funds as chinook salmon season faces likely closure
California Gov. Gavin Newsom (D) announced Thursday he was requesting a federal fishery disaster declaration, after regional supervisors recommended a full closure of ocean salmon season for the second year in a row. The Pacific Fishery Management Council — which oversees fishing along the Washington, Oregon and California coasts — voiced unanimous support on Wednesday for shuttering…

Birational maps to Grassmannians, representations and poset polytopes
Evgeny Feigin, with an appendix in collaboration with Wojciech Samotij
https://arxiv.org/abs/2403.10074

Birational maps to Grassmannians, representations and poset polytopes
We study the closure of the graph of the birational map from a projective space to a Grassmannian. We provide explicit description of the graph closure and compute the fibers of the natural projection to the Grassmannian. We construct embeddings of the graph closure to the projectivizations of certain cyclic representations of a degenerate special linear Lie algebra and study algebraic and combinatorial properties of these representations. In particular, we describe monomial bases, generalizing…

Ukrainian official: Border closure not discussed with Poland: https://benborges.xyz/2024/02/28/ukrainian-official-border.html

This https://arxiv.org/abs/2401.10056 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Axiomatization of Boolean Connexive Logics with syncategorematic negation and modalities
In the article we investigate three classes of extended Boolean Connexive Logics. Two of them are extensions of Modal and non-Modal Boolean Connexive Logics with a property of closure under an arbitrary number of negations. The remaining one is an extension of Modal Boolean Connexive Logic with a property of closure under the function of demodalization. In our work we provide a formal presentation of mentioned properties and axiom schemata that allow us to incorporate them into Hilbert-style ca…

#Vancouver #Transit
From Translink
King George SkyTrain Station closing for six weeks
Full closure necessary for essential track maintenance
Starting Saturday, April 27, King George SkyTrain Station will be closed for approximately six weeks to complete essential maintenance work. During th…

Hundreds of Small Presses Just Lost Their Distributor. Now What? - The New York Times
https://www.nytimes.com/2024/04/17/books/small-press-distribution-closure.html

Hundreds of Small Presses Just Lost Their Distributor. Now What?
A nonprofit that distributed books for many of the country’s small presses has closed, and the fallout could affect the publishing industry in ways both big and small.

Structure-preserving neural networks for the regularzied entropy-based closure of the Boltzmann moment system
Steffen Schotth\"ofer, M. Paul Laiu, Martin Frank, Cory D. Hauck
https://arxiv.org/abs/2404.14312

Structure-preserving neural networks for the regularzied entropy-based closure of the Boltzmann moment system
The main challenge of large-scale numerical simulation of radiation transport is the high memory and computation time requirements of discretization methods for kinetic equations. In this work, we derive and investigate a neural network-based approximation to the entropy closure method to accurately compute the solution of the multi-dimensional moment system with a low memory footprint and competitive computational time. We extend methods developed for the standard entropy-based closure to the …

This https://arxiv.org/abs/2312.12858 has been replaced.
initial toot: https://mastoxiv.page/@ar…

A continuous data assimilation closure for modeling statistically steady turbulence in large-eddy simulation
A closure model is presented for large-eddy simulation (LES) based on the three-dimensional variational data assimilation algorithm. The approach aims at reconstructing high-fidelity kinetic energy spectra in coarse numerical simulations by including feedback control to represent unresolved dynamics interactions in the flow as stochastic processes. The forcing uses statistics obtained from off-line high-fidelity data and requires only few parameters compared to the number of degrees of freedom …

This https://arxiv.org/abs/2403.09175 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

$v$-numbers of filtrations of homogenous ideals
We extend the notion of $v$-number and local $v$-number of a homogeneous ideal for Noetherian filtrations of homogeneous ideals in a Noetherian $\mathbb N$-graded domain. We consider integral closure filtrations, generalized symbolic power filtrations and filtrations of valuation ideals. We show that $v$-number and local $v$-number of these filtrations are quasi-linear type and $\displaystyle\lim\limits_{n\to\infty}\frac{v_\mathfrak p(I_n)}{n}$ exists. We explicitly compute $v$-numbers of symbo…

Q&A with ex-CEO of CrowdTangle Brandon Silverman about the founding principle of the research tool, Meta's decision to close it in an election year, and more (Chris Stokel-Walker/Fast Company)
https://www.fast…

CrowdTangle’s former CEO has questions about Meta’s decision to close the research tool in an election year
CrowdTangle has been a tool for researchers to track disinformation and its closure by Meta couldn’t come at a worse time, says former CEO Brandon Silverman.

Check out my schedule for #Treefort2024!
#Hackfort
(Subject to change)
Treefort Music Fest
https://

Treefort Music Fest
March 20-24, 2024 | Boise, ID

Computing the $D$-base and $D$-relation in finite closure systems
Kira Adaricheva, Lhouari Nourine, Simon Vilmin
https://arxiv.org/abs/2404.07037 https://<…

Computing the $D$-base and $D$-relation in finite closure systems
Implicational bases (IBs) are a common representation of finite closure systems and lattices, along with meet-irreducible elements. They appear in a wide variety of fields ranging from logic and databases to Knowledge Space Theory. Different IBs can represent the same closure system. Therefore, several IBs have been studied, such as the canonical and canonical direct bases. In this paper, we investigate the $D$-base, a refinement of the canonical direct base. It is connected with the $D$-relati…

Holy crap: Last month the feds hit Family Dollar with a record $41 million fine over vermin infestations at its distribution center and now:
**Family Dollar Announces Closure Of Nearly 1000 Stores** - Joe.My.God.
https://www.joemygod.com/2024/03/family-do

Family Dollar Announces Closure Of Nearly 1000 Stores
NBC News reports: The parent company of Family Dollar said it would close approximately 1,000 stores, citing market conditions, store performance and other factors. Shares of Dollar Tree fell as much

Petition to keep Tyagarah clothing optional beach open
https://chng.it/gRNJVHXkBc

Can you spare a minute to help this campaign?
Save Tyagarah beach, Byron Bay from closure

This https://arxiv.org/abs/2401.17160 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On spaces with a $π$-base whose elements have an H-closed closure
We deal with the class of Hausdorff spaces having a $π$-base whose elements have an H-closed closure. Carlson proved that $|X|\leq 2^{wL(X)ψ_c(X)t(X)}$ for every quasiregular space $X$ with a $π$-base whose elements have an H-closed closure. We provide an example of a space $X$ having a $π$-base whose elements have an H-closed closure which is not quasiregular (neither Urysohn) such that $|X|> 2^{wL(X)χ(X)}$ (then $|X|> 2^{wL(X)ψ_c(X)t(X)}$). Still in the cla…

#Clontarf's landmark saltwater #swimming pool will remain open despite restaurant closure.
#ireland

This https://arxiv.org/abs/2402.16974 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Finite generation of split F-regular monoid algebras
Let $S$ be a submonoid of a free Abelian group of finite rank. We show that if $k$ is a field of prime characteristic such that the monoid $k$-algebra $k[S]$ is split $F$-regular, then $k[S]$ is a finitely generated $k$-algebra, or equivalently, that $S$ is a finitely generated monoid. Split $F$-regular rings are possibly non-Noetherian or non-$F$-finite rings that satisfy the defining property of strongly $F$-regular rings from the theories of tight closure and $F$-singularities. Our finite ge…

On bundle closures of matrix pencils and matrix polynomials
Fernando De Ter\'an, Froil\'an M. Dopico, Vadym Koval, Patryk Pagacz
https://arxiv.org/abs/2402.16702

On bundle closures of matrix pencils and matrix polynomials
Bundles of matrix polynomials are sets of matrix polynomials with the same size and grade and the same eigenstructure up to the specific values of the eigenvalues. It is known that the closure of the bundle of a pencil $L$ (namely, a matrix polynomial of grade $1$), denoted by $\mathcal{B}(L)$, is the union of $\mathcal{B}(L)$ itself with a finite number of other bundles. The first main contribution of this paper is to prove that the dimension of each of these bundles is strictly smaller than t…

The day after the last day of operation and the website and social media accounts of CNN Philippines are gone. 😢
I hope there's an archive somewhere and not just on the @….

CNN Philippines To Shutter; Cites Financial Losses
After nine years in business, CNN Philippines will discontinue its news and production operations on all media platforms effective January 31. The news organization, which is a franchise holder of …

This https://arxiv.org/abs/2303.02066 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Line Multiview Ideals
We study the following problem in computer vision from the perspective of algebraic geometry: Using $m$ pinhole cameras we take $m$ pictures of a line in $\mathbb P^3$. This produces $m$ lines in $\mathbb P^2$ and the question is which $m$-tuples of lines can arise that way. We are interested in polynomial equations and therefore study the complex Zariski closure of all such tuples of lines. The resulting algebraic variety is a subvariety of $(\mathbb P^2)^m$ and is called line multiview variet…

This https://arxiv.org/abs/2401.10056 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Axiomatization of Boolean Connexive Logics with syncategorematic negation and modalities
In the article we investigate three classes of extended Boolean Connexive Logics. Two of them are extensions of Modal and non-Modal Boolean Connexive Logics with a property of closure under an arbitrary number of negations. The remaining one is an extension of Modal Boolean Connexive Logic with a property of closure under the function of demodalization. In our work we provide a formal presentation of mentioned properties and axiom schemata that allow us to incorporate them into Hilbert-style ca…

Wave turbulence: A solvable problem applied to Navier-Stokes
Sebastien Galtier
https://arxiv.org/abs/2402.14999 https://arxiv.org/pdf…

Wave turbulence: A solvable problem applied to Navier-Stokes
Wave turbulence and eddy turbulence are the two regimes that we may encounter in nature. The attention of fluid mechanics being mainly focused on incompressible hydrodynamics, it is usually the second regime that is treated in books, whereas waves are often present in geophysics and astrophysics. In these lecture notes, I present the theory of wave turbulence which is free from the closure problem encountered in eddy turbulence. Basically, the wave amplitude is introduced in a multiple time sca…

For folk in the UK... 'If your library is facing closure or cutbacks, it's important to know your rights and understand that public libraries are a statutory service' https://www.cilip.org.uk/page/know-your-rights

On bundle closures of matrix pencils and matrix polynomials
Fernando De Ter\'an, Froil\'an M. Dopico, Vadym Koval, Patryk Pagacz
https://arxiv.org/abs/2402.16702

On bundle closures of matrix pencils and matrix polynomials
Bundles of matrix polynomials are sets of matrix polynomials with the same size and grade and the same eigenstructure up to the specific values of the eigenvalues. It is known that the closure of the bundle of a pencil $L$ (namely, a matrix polynomial of grade $1$), denoted by $\mathcal{B}(L)$, is the union of $\mathcal{B}(L)$ itself with a finite number of other bundles. The first main contribution of this paper is to prove that the dimension of each of these bundles is strictly smaller than t…

Downcast to hear that 9 of Nottingham's 12 libraries are now under threat of closure to "save money". When you take into account well-being and education, closing libraries is such a false economy. The council did lose a chunk of money with their ill-fated Robin Hood Energy enterprise some years ago, but I mostly blame the government for the cuts to local areas. Nottingham isn't the only council in this kind of predicament. :-(
#Nottingham #libraries #ToriesOut

Google Maps has deleted the span of the Francis Scott #KeyBridge in #Baltimore that collapsed, and it looks eerie somehow.

This https://arxiv.org/abs/2212.03553 has been replaced.
link: https://scholar.google.com/scholar?q=a

Expressiveness of SHACL Features and Extensions for Full Equality and Disjointness Tests
SHACL is a W3C-proposed schema language for expressing structural constraints on RDF graphs. Recent work on formalizing this language has revealed a striking relationship to description logics. SHACL expressions can use three fundamental features that are not so common in description logics. These features are equality tests; disjointness tests; and closure constraints. Moreover, SHACL is peculiar in allowing only a restricted form of expressions (so-called targets) on the left-hand side of inc…

I have a steampunk crafty friend who made a "buckle closure snakeskin eyepatch" a real Escape From New York: 1835 piece of work
But I couldn't help thinking of https://xkcd.com/936/

Password Strength

Neither snow nor rain nor heat nor gloom of night nor train line closure stays me from being at the Now Play This opening day at Somerset House

The entire St Lawrence Seaway system will open for transiting of commercial ship traffic on Mar 22, 2024. Given that the system only closed on Jan 16, 2024, this is the shortest closure ever for the Great Lakes Waterways and Seaway system. #ClimateChange

Soo Locks set to open early for 2024 shipping season
Locks want to match early opening of March 22 announced for St. Lawrence Seaway

Tusk: Poland may temporarily close the border with Ukraine, suspending bilateral trade: https://benborges.xyz/2024/02/28/tusk-poland-may.html

Apple's handling of Epic's account closure turned a US contract dispute into a DMA enforcement priority due to the appearance of a gatekeeper silencing critics (Florian Mueller/games fray)
https://gamesfray.com…

This https://arxiv.org/abs/2309.13586 has been replaced.
link: https://scholar.google.com/scholar?q=a

Task-Oriented Dexterous Hand Pose Synthesis Using Differentiable Grasp Wrench Boundary Estimator
This work tackles the problem of task-oriented dexterous hand pose synthesis, which involves generating a static hand pose capable of applying a task-specific set of wrenches to manipulate objects. Unlike previous approaches that focus solely on force-closure grasps, which are unsuitable for non-prehensile manipulation tasks (\textit{e.g.}, turning a knob or pressing a button), we introduce a unified framework covering force-closure grasps, non-force-closure grasps, and a variety of non-prehens…

This https://arxiv.org/abs/2402.17956 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Relating Real and P-adic Kazhdan-Lusztig Polynomials
Fix an integral semisimple element $λ$ in the Lie algebra $\mathfrak{g}$ of a complex reductive algebraic group $G$. Let $L$ denote the centralizer of $λ$ in $G$ and let $\mathfrak{g}(-1)$ denote the $-1$ eigenspace of $\mathrm{ad}(λ)$ in $\mathfrak{g}$. Under a natural hypothesis (which is always satisfied for classical subgroups of $\mathrm{GL}(n)$), we embed the closure of each $L$ orbit on $\mathfrak{g}(-1)$ into the closure of an orbit of a symmetric subgroup $K$ containing $L$ on a par…

Interviews with over a dozen current and former WAMU staffers and contractors show management's contradictory, unclear messaging about its closure of DCist (Andrew Beaujon/Washingtonian)
https://www.washingtonian.com/2024/04/19/why-did-wamu-close-dcist/

Why Did WAMU Close DCist? - Washingtonian
The star-crossed marriage of Washington's NPR member station and a feisty digital news publication came to an abrupt end in February. Staffers are still unclear about what the station's management wants now.

This https://arxiv.org/abs/2309.16824 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csLO_…

The fork and its role in unification of closure algebras
We consider the two-pronged fork frame $F$ and the variety $\mathbf{Eq}(B_F)$ generated by its dual closure algebra $B_F$. We describe the finite projective algebras in $\mathbf{Eq}(B_F)$ and give a purely semantic proof that unification in $\mathbf{Eq}(B_F)$ is finitary and not unitary.

This https://arxiv.org/abs/2003.12810 has been replaced.
link: https://scholar.google.com/scholar?q=a

Preserving self-similarity in free products of semigroups
We improve on earlier results on the closure under free products of the class of automaton semigroups. We consider partial automata and show that the free product of two self-similar semigroups (or automaton semigroups) is self-similar (an automaton semigroup) if there is a homomorphism from one of the base semigroups to the other. The construction used is computable and yields further consequences. One of them is that we can adjoin a free generator to any self-similar semigroup (or automaton s…

On spaces with a $\pi$-base whose elements have an H-closed closure
Davide Giacopello
https://arXiv.org/abs/2401.17160 https://arXiv.…

On spaces with a $π$-base whose elements have an H-closed closure
We deal with the class of Hausdorff spaces having a $π$-base whose elements have an H-closed closure. Carlson proved that $|X|\leq 2^{wL(X)ψ_c(X)t(X)}$ for every quasiregular space $X$ with a $π$-base whose elements have an H-closed closure. We provide an example of a space $X$ having a $π$-base whose elements have an H-closed closure which is not quasiregular (neither Urysohn) such that $|X|> 2^{wL(X)χ(X)}$ (then $|X|> 2^{wL(X)ψ_c(X)t(X)}$). Still in the cla…

It this some TikTok challenge thing?
Barge hits bridge in Oklahoma just days after Baltimore tragedy | The Independent
https://www.independent.co.uk/news/world/americas/oklahoma-highway-barge-bridge-closure-balt…

Barge hits bridge in Oklahoma just days after Baltimore tragedy
State patrol troopers closed US Highway 59 about 1:25 pm after receiving word of the incident and diverted traffic from the area

WBD confirms it'll close its Newshub outlet in New Zealand on July 5, cutting ~300 roles and leaving state-owned TVNZ with a near-monopoly on TV news production (Newshub)
https://www.newshub.co.nz/home/entertainme…

WBD confirms Newshub will close in early July, no deal for external production
The results of the consultation into the proposal to shut down Newshub have been revealed.

This https://arxiv.org/abs/2209.00085 has been replaced.
link: https://scholar.google.com/scholar?q=a

Dynamics of endomorphisms of algebraic groups
Let $σ$ denote an endomorphism of a smooth algebraic group $G$ over the algebraic closure of a finite field, and assume all iterates of $σ$ have finitely many fixed points. Steinberg gave a formula for the number of fixed points of $σ$ (and hence of all of its iterates $σ^n$) in the semisimple case, leading to a representation of its Artin-Mazur zeta function as a rational function. We generalise this to an arbitrary (smooth) algebraic group $G$, where the number of fixed points $σ_n$ of $…

This https://arxiv.org/abs/2309.14590 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

HeLiPR: Heterogeneous LiDAR Dataset for inter-LiDAR Place Recognition under Spatiotemporal Variations
Place recognition is crucial for robot localization and loop closure in simultaneous localization and mapping (SLAM). Light Detection and Ranging (LiDAR), known for its robust sensing capabilities and measurement consistency even in varying illumination conditions, has become pivotal in various fields, surpassing traditional imaging sensors in certain applications. Among various types of LiDAR, spinning LiDARs are widely used, while non-repetitive scanning patterns have recently been utilized i…

This https://arxiv.org/abs/2305.19866 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Uniformity for limits of tensors
There are many notions of rank in multilinear algebra: tensor rank, partition rank, slice rank, and strength (or Schmidt rank) are a few examples. Typically the rank $\le r$ locus is not Zariski closed, and understanding the closure (the locus with "border rank" $\le r$) is an important problem. We make two contributions in this direction: we prove a de-bordering result, which bounds border rank as a function of rank; and we show that the limits required to realize a point of border rank $\le r…

This https://arxiv.org/abs/2207.04507 has been replaced.
link: https://scholar.google.com/scholar?q=a

Closing the Gap Between Directed Hopsets and Shortcut Sets
For an n-vertex directed graph $G = (V,E)$, a $β$-\emph{shortcut set} $H$ is a set of additional edges $H \subseteq V \times V$ such that $G \cup H$ has the same transitive closure as $G$, and for every pair $u,v \in V$, there is a $uv$-path in $G \cup H$ with at most $β$ edges. A natural generalization of shortcut sets to distances is a $(β,ε)$-\emph{hopset} $H \subseteq V \times V$, where the requirement is that $H$ and $G \cup H$ have the same shortest-path distances, and for every $u,v …

On modular representations of inner forms of $\mathrm{GL}_n$ over a local non-archimedean field
Johannes Droschl
https://arxiv.org/abs/2402.13969 https://<…

On modular representations of inner forms of $\mathrm{GL}_n$ over a local non-archimedean field
Let $\mathrm{F}$ be a local non-archimedean field of residue characteristic $p$ and $\overline{\mathbb{F}}_\ell$ an algebraic closure of a finite field of characteristic $\ell \neq p$. We extend the results of Lapid and Mínguez concerning $\square$-irreducible representations of inner forms of $\mathrm{GL}_n(\mathrm{F})$ to representations over $\overline{\mathbb{F}}_\ell$. As applications, we compute the Godement-Jacquet $L$-factor for any smooth irreducible representation over $\overline{\ma…

Foreign Ministry confirms Zara, other fashion brands to return to Ukraine: https://benborges.xyz/2024/03/08/foreign-ministry-confirms.html

WBD proposes shutting down Newshub, one of New Zealand's major newsrooms, on June 30, as part of which ~200 journalists and other staff could lose their jobs (Newshub)
https://www.newshub.co.nz/home/entertainme

Newshub newsroom faces closure in Warner Bros. Discovery proposal
Hundreds of jobs would be affected if the company proposal is confirmed.

This https://arxiv.org/abs/2307.02432 has been replaced.
initial toot: https://mastoxiv.page/@ar…

A probabilistic, data-driven closure model for RANS simulations with aleatoric, model uncertainty
We propose a data-driven, closure model for Reynolds-averaged Navier-Stokes (RANS) simulations that incorporates aleatoric, model uncertainty. The proposed closure consists of two parts. A parametric one, which utilizes previously proposed, neural-network-based tensor basis functions dependent on the rate of strain and rotation tensor invariants. This is complemented by latent, random variables which account for aleatoric model errors. A fully Bayesian formulation is proposed, combined with a s…

Local and local-to-global Principles for zero-cycles on geometrically Kummer $K3$ surfaces
Evangelia Gazaki, Jonathan Love
https://arxiv.org/abs/2402.12588

Local and local-to-global Principles for zero-cycles on geometrically Kummer $K3$ surfaces
Let $X$ be a $K3$ surface over a $p$-adic field $k$ such that for some abelian surface $A$ isogenous to a product of two elliptic curves, there is an isomorphism over the algebraic closure of $k$ between $X$ and the Kummer surface associated to $A$. Under some assumptions on the reduction types of the elliptic curve factors of $A$, we prove that the Chow group $A_0(X)$ of zero-cycles of degree $0$ on $X$ is the direct sum of a divisible group and a finite group. This proves a conjecture of Rask…

This https://arxiv.org/abs/2301.13770 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Energy-Conserving Neural Network for Turbulence Closure Modeling
In turbulence modeling, we are concerned with finding closure models that represent the effect of the subgrid scales on the resolved scales. Recent approaches gravitate towards machine learning techniques to construct such models. However, the stability of machine-learned closure models and their abidance by physical structure (e.g. symmetries, conservation laws) are still open problems. To tackle both issues, we take the `discretize first, filter next' approach. In this approach we apply a spa…

Almost sure OTM-realizability
Merlin Carl
https://arxiv.org/abs/2403.10280 https://arxiv.org/pdf/2403.10280

Almost sure OTM-realizability
Combining the approaches made in works with Galeotti and Passmann, we define and study a notion of "almost sure" realizability with parameter-free ordinal Turing machines (OTMs). In particular, we show that, in contrast to the classical case, almost sure realizability differs from plain realizability, while closure under intuitionistic predicate logic and realizability of Kripke-Platek set theory continue to hold.

This https://arxiv.org/abs/2209.03816 has been replaced.
link: https://scholar.google.com/scholar?q=a

The closure ordering conjecture on local Arthur packets of classical groups
In this paper, we prove the closure ordering conjecture on the local $L$-parameters of representations in local Arthur packets of $\mathrm{G}_n=\mathrm{Sp}_{2n}, \mathrm{SO}_{2n+1}$ over a non-Archimedean local field of characteristic zero. Precisely, given any representation $π$ in a local Arthur packet $Π_ψ$, the closure of the local $L$-parameter of $π$ in the Vogan variety must contain the local $L$-parameter corresponding to $ψ$. This conjecture reveals a geometric nature of local Art…

This https://arxiv.org/abs/2404.07644 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

2DLIW-SLAM:2D LiDAR-Inertial-Wheel Odometry with Real-Time Loop Closure
Due to budgetary constraints, indoor navigation typically employs 2D LiDAR rather than 3D LiDAR. However, the utilization of 2D LiDAR in Simultaneous Localization And Mapping (SLAM) frequently encounters challenges related to motion degeneracy, particularly in geometrically similar environments. To address this problem, this paper proposes a robust, accurate, and multi-sensor-fused 2D LiDAR SLAM system specifically designed for indoor mobile robots. To commence, the original LiDAR data undergoe…

Occupation authorities shut down Crimean Bridge second night in a row: https://benborges.xyz/2024/03/04/occupation-authorities-shut.html

This https://arxiv.org/abs/2403.09175 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

$v$-numbers of filtrations of homogenous ideals
We extend the notion of $v$-number and local $v$-number of a homogeneous ideal for Noetherian filtrations of homogeneous ideals in a Noetherian $\mathbb N$-graded domain. We consider integral closure filtrations, generalized symbolic power filtrations and filtrations of valuation ideals. We show that $v$-number and local $v$-number of these filtrations are quasi-linear type and $\displaystyle\lim\limits_{n\to\infty}\frac{v_\mathfrak p(I_n)}{n}$ exists. We explicitly compute $v$-numbers of symbo…

This https://arxiv.org/abs/2208.06338 has been replaced.
link: https://scholar.google.com/scholar?q=a

Zilber-Pink in a product of modular curves assuming multiplicative degeneration
We prove the Zilber--Pink conjecture for curves in $Y(1)^n$ whose Zariski closure in $(\mathbb{P}^1)^n$ passes through the point $(\infty, \ldots, \infty)$, going beyond the asymmetry condition of Habegger and Pila. Our proof is based on a height bound following André's G-functions method. The principal novelty is that we exploit relations between evaluations of G-functions at unboundedly many non-archimedean places.

This https://arxiv.org/abs/2305.02804 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

An asymptotic preserving kinetic scheme for the M1 model of linear transport
Moment models with suitable closure can lead to accurate and computationally efficient solvers for particle transport. Hence, we propose a new asymptotic preserving scheme for the M1 model of linear transport that works uniformly for any Knudsen number. Our idea is to apply the M1 closure at the numerical level to an existing asymptotic preserving scheme for the corresponding kinetic equation, namely the Unified Gas Kinetic scheme (UGKS) originally proposed in [27] and extended to linear transp…

This https://arxiv.org/abs/2404.07644 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

2DLIW-SLAM:2D LiDAR-Inertial-Wheel Odometry with Real-Time Loop Closure
Due to budgetary constraints, indoor navigation typically employs 2D LiDAR rather than 3D LiDAR. However, the utilization of 2D LiDAR in Simultaneous Localization And Mapping (SLAM) frequently encounters challenges related to motion degeneracy, particularly in geometrically similar environments. To address this problem, this paper proposes a robust, accurate, and multi-sensor-fused 2D LiDAR SLAM system specifically designed for indoor mobile robots. To commence, the original LiDAR data undergoe…

Points totalement r\'eels de la courbe $x^5 y^5 z^5=0$
Alain Kraus
https://arxiv.org/abs/2404.08922 https://arxiv.org/pdf/2404.08…

Points totalement réels de la courbe $x^5+y^5+z^5=0$
Let $\overline{\mathbb{Q}}$ be an algebraic closure of $\mathbb{Q}$ and $\mathbb{Q}^{tr}$ be the subfield of $\overline{\mathbb{Q}}$ obtained by taking the union of all totally real number fields. For any prime $p\geq 3$, let $F_p/\mathbb{Q}$ be the Fermat curve of equation $x^p+y^p+z^p=0$. In 1996, Pop has shown that the field $\mathbb{Q}^{tr}$ is large. In particular, the set $F_p(\mathbb{Q}^{tr})$ of the points of $F_p$ rational over $\mathbb{Q}^{tr}$ is infinite. How to explicit non-trivial…

Small book publishers worry following the abrupt closure of Small Press Distribution, which was one of the last independent book distributors in the US (Adam Morgan/Literary Hub)
https://lithub.com/the-small-press-world-…

“The Small Press World is About to Fall Apart.” On the Collapse of Small Press Distribution
Last week, Diane Goettel was on vacation in Florida when she saw an alarming email on her phone. After 55 years, Small Press Distribution (SPD)—one of the last remaining independent book distributo…

Scientific machine learning for closure models in multiscale problems: a review
Benjamin Sanderse, Panos Stinis, Romit Maulik, Shady E. Ahmed
https://arxiv.org/abs/2403.02913

Scientific machine learning for closure models in multiscale problems: a review
Closure problems are omnipresent when simulating multiscale systems, where some quantities and processes cannot be fully prescribed despite their effects on the simulation's accuracy. Recently, scientific machine learning approaches have been proposed as a way to tackle the closure problem, combining traditional (physics-based) modeling with data-driven (machine-learned) techniques, typically through enriching differential equations with neural networks. This paper reviews the different reduced…