Tootfinder

Advancing End-to-End Pixel Space Generative Modeling via Self-supervised Pre-training
Jiachen Lei, Keli Liu, Julius Berner, Haiming Yu, Hongkai Zheng, Jiahong Wu, Xiangxiang Chu
https://arxiv.org/abs/2510.12586

Advancing End-to-End Pixel Space Generative Modeling via Self-supervised Pre-training
Pixel-space generative models are often more difficult to train and generally underperform compared to their latent-space counterparts, leaving a persistent performance and efficiency gap. In this paper, we introduce a novel two-stage training framework that closes this gap for pixel-space diffusion and consistency models. In the first stage, we pre-train encoders to capture meaningful semantics from clean images while aligning them with points along the same deterministic sampling trajectory, …

product_space: Atlas of Economic Complexity export network
Two networks of economic products, where a pair of products are connected if they are exported at similar rates by the same countries. The data are a projection from a bipartite network of nations and the products they export. Edges weights represent a similarity score (called "proximity"). Data based on UN Comtrade worldwide trade patterns. SITC network based on the Standard International Trade Classification and HS …

Targeted Pooled Latent-Space Steganalysis Applied to Generative Steganography, with a Fix
Etienne Levecque (LIST3N), Aur\'elien Noirault (CRIStAL), Tom\'a\v{s} Pevn\'y (CTU), Jan Butora (CRIStAL), Patrick Bas (CRIStAL), R\'emi Cogranne (LIST3N)
https://arxiv.org/abs/2510.12414

Targeted Pooled Latent-Space Steganalysis Applied to Generative Steganography, with a Fix
Steganographic schemes dedicated to generated images modify the seed vector in the latent space to embed a message, whereas most steganalysis methods attempt to detect the embedding in the image space. This paper proposes to perform steganalysis in the latent space by modeling the statistical distribution of the norm of the latent vector. Specifically, we analyze the practical security of a scheme proposed by Hu et. al. for latent diffusion models, which is both robust and practically undetecta…

The Kitten Space Agency public alpha is out 😍😍😍😍😻😻 I might have to find a solution to run windows somewhere somehow https://ahwoo.com/store/KPbAA1Au/kitten-space-agency

How much salary cap space Dallas Cowboys save by cutting, trading Trevon Diggs https://www.si.com/nfl/cowboys/onsi/news/how-much-salary-cap-space-dallas-cowboys-save-cutting-trading-trevon-diggs

The rolling tangent space, a forgotten vision on geodesics and parallel transport?
Constant Pinteaux, Gijs M. Tuynman
https://arxiv.org/abs/2510.10247 https://

The rolling tangent space, a forgotten vision on geodesics and parallel transport?
Given a submanifold $M\subset \mathbf{R}^ν$, a curve $γ:I\to M$ and tangent vectors $v$ along $γ$, we roll the tangent space along $γ$. In doing so, we get an imprint of $γ$ on the tangent space, as well as an imprint of tangent vectors. We show that $γ$ is a geodesic on $M$ if and only if this trace/imprint on the (affine) tangent space is a straight line and that $v$ is a set of parallel vectors if and only if their imprint on the tangent space is constant. In other words, in the view o…

Towards Inference-time Scaling for Continuous Space Reasoning
Minghan Wang, Thuy-Trang Vu, Ehsan Shareghi, Gholamreza Haffari
https://arxiv.org/abs/2510.12167 https://

Towards Inference-time Scaling for Continuous Space Reasoning
Inference-time scaling through multiple sample generation in combination with Process- or Outcome-Reward Model (PRM or ORM) re-ranking has proven effective for text-based reasoning in large language models. This paper investigates whether such established techniques can be successfully adapted to reasoning in the continuous space, using COCONUT (Hao et al. 2024) continuous space reasoning LM as the backbone. We demonstrate the feasibility of generating diverse reasoning paths through dropout-ba…

Global treaty to end subsidies for destructive fishing takes effect https://news.mongabay.com/short-article/2025/10/global-treaty-to-end-subsidies-for-destructive-fishing-takes-effect/

Global treaty to end subsidies for destructive fishing takes effect
A landmark global treaty to curb billions of dollars in government subsidies for overfishing took effect on Sept. 15, Mongabay contributor Elizabeth Fitt reported. The agreement marks the first time the World Trade Organization (WTO) has approved an environmental sustainability agreement in its 30-year history. The deal came into effect after Brazil, Kenya, Tonga and […]

In my latest Squirrels at War post, I forgot to put in the hashtags. Here they are:
#writingcommunity #visualinspiration
Earlier installments can be read from this page:

KI-Update kompakt: RSL 1.0, Space-Rechenzentrum, Energiequelle, Müllsortierung
Das "KI-Update" liefert drei mal pro Woche eine Zusammenfassung der wichtigsten KI-Entwicklungen.
https:/…

Cohomology of vector bundles on the moduli space of parabolic connections on $\mathbb{P}^1$ minus $5$ points
Yuki Matsubara
https://arxiv.org/abs/2510.12578 https://

Cohomology of vector bundles on the moduli space of parabolic connections on $\mathbb{P}^1$ minus $5$ points
We study the moduli space of parabolic connections of rank two on the complex projective line $\mathbb{P}^1$ minus five points with fixed spectral data. This paper aims to compute the cohomology of the structure sheaf and a certain vector bundle on this space. We use this computation to extend the results of Arinkin, which proved a specific Geometric Langlands Correspondence to the case where these connections have five simple poles on $\mathbb{P}^1$. Moreover, we give an explicit geometric des…

i would support this!
#alttext
https://lgbtqia.space/@alice/115624244196161775

Drei #Astronauten der aktuellen Shenzhou-21-Mission befinden sich derzeit ohne intaktes Rückkehrfahrzeug auf der chinesischen #Raumstation #Tiangong.
Ihr vorgesehenes

Three astronauts are stuck on China’s space station without a safe ride home
“This does not meet the release conditions for a safe manned return.”…

The Rational Homotopy of Stable $C_p$-Smoothings
Oliver H. Wang
https://arxiv.org/abs/2510.11622 https://arxiv.org/pdf/2510.11622

The Rational Homotopy of Stable $C_p$-Smoothings
Smooth structures on high dimensional manifolds are classified by maps to the infinite loop space $TOP/O$. The homotopy groups of this space are known to be finite. Given a compact Lie group $G$, this space can be regarded as an equivariant infinite loop space and equivariant maps from a locally linear, high dimensional $G$-manifold to $TOP/O$ classify stable $G$-smoothings. We compute the equivariant homotopy groups $π_V^{C_p}TOP/O\otimes\Q$ where $C_p$ denotes the cyclic group of order $p$.

Persistent foliarity of (1,1) almost L-space knots
Qingfeng Lyu
https://arxiv.org/abs/2510.11533 https://arxiv.org/pdf/2510.11533

Persistent foliarity of (1,1) almost L-space knots
We propose a branched surface model that could be used to prove (1,1) non-L-space knots in $S^3$ and lens spaces are persistently foliar. We verify that this model works for (1,1) almost L-space knots.

Continual Release of Densest Subgraphs: Privacy Amplification & Sublinear Space via Subsampling
Felix Zhou
https://arxiv.org/abs/2510.11640 https://arx…

Continual Release of Densest Subgraphs: Privacy Amplification & Sublinear Space via Subsampling
We study the sublinear space continual release model for edge-differentially private (DP) graph algorithms, with a focus on the densest subgraph problem (DSG) in the insertion-only setting. Our main result is the first continual release DSG algorithm that matches the additive error of the best static DP algorithms and the space complexity of the best non-private streaming algorithms, up to constants. The key idea is a refined use of subsampling that simultaneously achieves privacy amplification…

«Kovid betrayed us with Calibre 8.16.2, and we as a community never should have let that happen, never have placed such a burden on individual generosity. The synthesis of these two truths, then, is nearly self-evident. There must be a new effort, free from AI encumbrances, that is built from the ground-up as a community effort. Something that can outlive the decisions of any one participant»
Glad to see more efforts on community-based FOSS governance!
https://blog.rereading.space/rereading-because-books-are-art-and-art-is-labor

Crosslisted article(s) found for physics.space-ph. https://arxiv.org/list/physics.space-ph/new
[1/1]:
- Loading non-Maxwellian Velocity Distributions in Particle Simulations
Seiji Zenitani, Shunsuke Usami, Shuichi Matsukiyo

A triumph of film art, creating on the screen a vast, awe-inspiring picture of the universe as it would appear to a voyager through space, this film was among the sources used by Stanley Kubrick in his 2001: A Space Odyssey.
Universe - #NFB
https://www.nfb.ca/film/universe/

Stochastic Finite Volume Approximation with Clustering in the Parameter Space for Forward Uncertainty Quantification of PDEs with Random Parameters
Zhao Zhang, Na Ou
https://arxiv.org/abs/2510.12109

Stochastic Finite Volume Approximation with Clustering in the Parameter Space for Forward Uncertainty Quantification of PDEs with Random Parameters
The uncertainty quantification (UQ) for partial differential equations (PDEs) with random parameters is important for science and engineering. Forward UQ quantifies the impact of random parameters on the solution or the quantity-of-interest (QoI). In the current study, we propose a new extension of the stochastic finite volume (SFV) method by clustering samples in the parameter space. Compared to classic SFV based on structured grid in the parameter space, the new scheme based on clustering ext…

💪 Muscle tissue from a 3D printer—produced in zero gravity
#muscle

Muscle tissue from a 3D printer—produced in zero gravity
Human health is the Achilles heel of space travel. Researchers at ETH Zurich have now succeeded in printing complex muscle tissue in zero gravity. This will enable drugs for space missions to be tested in the future.

Extreme events and impact statistics for unipotent actions on the space of lattices
Jens Marklof, Andreas Str\"ombergsson, Shucheng Yu
https://arxiv.org/abs/2510.11371 http…

Extreme events and impact statistics for unipotent actions on the space of lattices
This paper extends a recent extreme value law for horocycle flows on the space of two-dimensional lattices, due to Kirsebom and Mallahi-Karai, to the simplest examples of rank-$k$ unipotent actions on the space of $n$-dimensional lattices. We analyse the problem in terms of the hitting time and impact statistics for the unipotent action with respect to a shrinking surface of section, following the strategy of Pollicott and the first named author in the case of hyperbolic surfaces. If $k=n-1$, t…

Argus: JAX state-space filtering for gravitational wave detection with a pulsar timing array
Tom Kimpson, Nicholas J. O'Neill, Patrick M. Meyers, Andrew Melatos
https://arxiv.org/abs/2510.11077

Argus: JAX state-space filtering for gravitational wave detection with a pulsar timing array
Argus is a high-performance Python package for detecting and characterising nanohertz gravitational waves in pulsar timing array data. The package provides a complete Bayesian inference framework based on state-space models, using Kalman filtering for efficient likelihood evaluation. Argus leverages JAX for just-in-time compilation, GPU acceleration, and automatic differentiation, facilitating rapid Bayesian inference with gradient-based samplers. The state-space approach provides a computation…

Space-time singularities in spatially-chirped Laguerre-Gaussian beams of any order
Spencer W. Jolly
https://arxiv.org/abs/2510.11161 https://arxiv.org/pdf/…

Space-time singularities in spatially-chirped Laguerre-Gaussian beams of any order
The electric field distributions and space-time singularity curves are computed for ultrashort pulsed Laguerre-Gaussian laser beams having spatial chirp. Due to the breaking of cylindrical symmetry by the spatial chirp, the singularities trace complicated curves in space-time, which also vary for different combinations of radial and vortical orders. Analytical solutions are mostly presented along with a recipe for numerically calculating higher orders. The behavior of the singularities upon pro…

Here's some space photons I snapped up before they hit my driveway.
Flame Nebula and Horsehead Nebula in Orion.
#astrophotography

Impact of elastic inhomogeneity on collective dynamical properties investigated by field theoretical description in real space
Cunyuan Jiang
https://arxiv.org/abs/2510.10928 htt…

Impact of elastic inhomogeneity on collective dynamical properties investigated by field theoretical description in real space
Interpreting the vibrational properties of amorphous solids beyond Debye's theory is challenging due to the presence of inhomogeneity on the mesoscopic scale. In this work, we model this inhomogeneity by real-space fluctuating elasticity with a spatially correlated distribution and calculate the dynamical properties using an exact real-space field theoretical approach. Our results clarify that the excess low-frequency density of states (DOS) originates from a selective scattering effect (strong…

Series D, Episode 05 - Animals
JUSTIN: Probably by the cliff.
[Servalan's ship is on planet's surface. Servalan to three troopers]
https://blake.torpidity.net/m/405/271 B7B4

P-V Criticality and Microstructure of Hayward Black Holes in Anti-de Sitter Space
Haximjan Abdusattar
https://arxiv.org/abs/2510.11319 https://arxiv.org/pd…

P-V Criticality and Microstructure of Hayward Black Holes in Anti-de Sitter Space
In this study, we investigate the $P$-$V$ criticality and Ruppeiner geometry in the extended phase space of Hayward anti-de Sitter (AdS) black holes. Through thermodynamic analysis, we confirm that Hayward-AdS black holes undergo distinct $P$-$V$ phase transitions and exhibit well-defined critical phenomena in the vicinity of their critical points. These behaviors are characterized by four critical exponents that typically obey the scaling laws predicted by mean-field theory--indicating a consi…

On the Relationship between Space-Time Accessibility and Leisure Activity Participation
Yuan Liao, Rafael H. M. Pereira, Jorge Gil, Silvia De Sojo Caso, Laura Alessandretti
https://arxiv.org/abs/2510.10307

On the Relationship between Space-Time Accessibility and Leisure Activity Participation
Understanding how accessibility shapes participation in leisure activities is central to promoting inclusive and vibrant urban life. Conventional accessibility measures often focus on potential access from fixed home locations, overlooking the constraints and opportunities embedded in daily routines. In this study, we introduce a space-time accessibility (SPA) metric rooted in the capability approach, capturing feasible leisure opportunities between home and work given a certain time budget, in…

i guess i'm getting an ASN and some IPv6 PI space

Hadamard-L\'{e}vy theorems for maps taking values in a finite dimensional space
Yacine Chitour, Zhengping Ji, Emmanuel Tr\'elat
https://arxiv.org/abs/2510.11206 https://…

Hadamard-Lévy theorems for maps taking values in a finite dimensional space
We propose global surjectivity theorems of differentiable maps based on second order conditions. Using the homotopy continuation method, we demonstrate that, for a $C^2$ differentiable map from a Hilbert space to a finite-dimensional Euclidean space, when its second-order differential has uniform upper and lower bounds, it has a global path-lifting property in the presence of singularities. This is then applied to the nonlinear motion planning problem, establishing in some cases the well-posedn…

Exploration of Embodied Space Experience through Umbilical Interaction: A Grounded Theory Approach
Shuai Guo, Dawei Liu, Tiantian Zheng
https://arxiv.org/abs/2510.10258 https://…

Exploration of Embodied Space Experience through Umbilical Interaction: A Grounded Theory Approach
This paper critiques the limits of human-centered design in HCI, proposing a shift toward Interface-Centered Design. Drawing on Hookway's philosophy of interfaces, phenomenology, and embodied interaction, we created Umbilink, an umbilical interaction device simulating a uterine environment with tactile sensors and rhythmic feedback to induce a pre-subjectivized state of sensory reduction. Participants' experiences were captured through semi-structured interviews and analyzed with grounded theor…

Colombia’s Constitutional Court Not Only Upholds Bullfighting Ban, But Bans More Animal Spectacles https://veganfta.com/articles/2025/09/12/colombias-constitutional-court-not-only-uphold…

Colombia’s Constitutional Court Not Only Upholds Bullfighting Ban, But Bans More Animal Spectacles
On the 4th September 2025, Colombia’s Constitutional Court issued a final ruling banning bullfighting nationwide and ordering the total restriction of other violent practices against animals used in…

Adaptive Science Operations in Deep Space Missions Using Offline Belief State Planning
Grace Ra Kim, Hailey Warner, Duncan Eddy, Evan Astle, Zachary Booth, Edward Balaban, Mykel J. Kochenderfer
https://arxiv.org/abs/2510.08812

Adaptive Science Operations in Deep Space Missions Using Offline Belief State Planning
Deep space missions face extreme communication delays and environmental uncertainty that prevent real-time ground operations. To support autonomous science operations in communication-constrained environments, we present a partially observable Markov decision process (POMDP) framework that adaptively sequences spacecraft science instruments. We integrate a Bayesian network into the POMDP observation space to manage the high-dimensional and uncertain measurements typical of astrobiology missions…

Moody Urbanity - Passer By 🚶‍♂️
情绪化城市 - 路人 🚶‍♂️
📷 Pentax MX
🎞️ Kentmere Pan 400
#filmphotography #Photography #blackandwhite

from my link log —
capsudo: Rethinking sudo with object capabilities.
https://ariadne.space/2025/12/12/rethinking-sudo-with-object-capabilities.html
saved 2025-12-12

In the #coworking of my choice, there's a rare and lucky opportunity: one of BASE’s Team Offices will be available soon.
The facts:
- fully furnished Private Office for 4-5 people
- 24/7 smart lock access & high speed WiFi
- large business network
- company address at BASE
- free meeting room & phone booth usage
- coffee, tea, muesli, office mat…

The tragedy of a vile person like Charlie Kirk is that we’ve even heard of him, that a person like that managed to hold so many microphones for so long.
He shouldn’t have been shot. He should have been cut off by everyone in every space where he tried to hold the microphone, shamed into living isolated and miserable in his mom’s basement where nobody would ever feel the need to shoot him.

Towards Fock Spaces in Hypercomplex Analysis
Kamal Diki
https://arxiv.org/abs/2510.10688 https://arxiv.org/pdf/2510.10688

Towards Fock Spaces in Hypercomplex Analysis
The Bargmann-Fock space(or Fock space for short) is a fundamental example of reproducing kernel Hilbert spaces that has found fascinating applications across multiple fields of current interest, including quantum mechanics, time-frequency analysis, mathematical analysis, and stochastic processes. In recent years, there has been increased interest in studying counterparts of the Fock space and related topics in hypercomplex analysis. This chapter presents a survey exploring various aspects of th…

2025 and grown up men are surprised that putting their luggage unattended for 10 minutes on open space at an airport is problematic. 🤷

A Class of Functionals on the Sequence Space $s$ Satisfying the Palais-Smale Condition
Kaveh Eftekharinasab
https://arxiv.org/abs/2510.10146 https://arxiv.…

A Class of Functionals on the Sequence Space $s$ Satisfying the Palais-Smale Condition
We introduce a class of functionals on the space of rapidly decreasing sequences $s$, called $\mathcal{F}_s$-functionals, defined as decomposable sums of quadratic and convex terms with quadratic growth. We prove that such functionals satisfy the Palais-Smale condition and admit a unique global minimum. Furthermore, we show that the Palais-Smale condition is preserved under linear homeomorphisms. This allows us to construct corresponding functionals satisfying the Palais-Smale condition on Fré…

Plastic metric spaces and groups
Taras Banakh, Oles Mazurenko, Olesia Zavarzina
https://arxiv.org/abs/2510.10537 https://arxiv.org/pdf/2510.10537

Plastic metric spaces and groups
A metric space is plastic if all its non-expansive bijections are isometries. We prove three main results: (1) every countable dense subspace of a normed space is not plastic, (2) every $k$-crowded separable metric space contains a plastic dense subspace, and (3) every strictly convex separable metric group contains a plastic dense subgroup.

Active Subspaces in Infinite Dimension
Poorbita Kundu, Nathan Wycoff
https://arxiv.org/abs/2510.11871 https://arxiv.org/pdf/2510.11871

Active Subspaces in Infinite Dimension
Active subspace analysis uses the leading eigenspace of the gradient's second moment to conduct supervised dimension reduction. In this article, we extend this methodology to real-valued functionals on Hilbert space. We define an operator which coincides with the active subspace matrix when applied to a Euclidean space. We show that many of the desirable properties of Active Subspace analysis extend directly to the infinite dimensional setting. We also propose a Monte Carlo procedure and discus…

Generation Space Size: Understanding and Calibrating Open-Endedness of LLM Generations
Sunny Yu, Ahmad Jabbar, Robert Hawkins, Dan Jurafsky, Myra Cheng
https://arxiv.org/abs/2510.12699

Generation Space Size: Understanding and Calibrating Open-Endedness of LLM Generations
Different open-ended generation tasks require different degrees of output diversity. However, current LLMs are often miscalibrated. They collapse to overly homogeneous outputs for creative tasks and hallucinate diverse but incorrect responses for factual tasks. We argue that these two failure modes are unified by, and can both be addressed by, the notion of effective generation space size (GSS) -- the set of semantically distinct outputs a model considers for a prompt. We present GSSBench, a ta…

Feels nice and roomy in there at the moment. Lots of space. That'll change when the bed goes in and fills most of it up of course. Maybe I should have planned for a fold-away one. Probably pointless, I'd never actually fold it away unless I was having a disco and I've never done that.

Amazon will invest $35B in India's cloud and AI sector by 2030, adding to the ~$40B it has invested in the country, and says the plan will create 1M more jobs (Dylan Butts/CNBC)
https://www.cnbc.com/2025/12/10/amazon-ple

Amazon pledges a massive $35 billion worth of investments in India’s AI space through 2030
Amazon has committed to investing $$35 billion in India’s cloud and AI space by 2030, as hyperscalers race to get a foothold in the market.

While the 20x single-level images of the PIC12F683 are only about 85 MB, the 100x focus stacked datasets are around 7GB each.
For comparison, all of the raw footage for my SRS GPSDO video was only 8.1 GB in total.
Sure, video is big, but when your microscope is spitting out a few thousand multi-megapixel stills an hour it'll chew through disk space pretty fast too.

de Sitter versus Anti de Sitter flows and the (super)gravity landscape: Part II
Elias Kiritsis, Sergio Morales-Tejera, Christopher Rosen
https://arxiv.org/abs/2510.12373 https:/…

de Sitter versus Anti de Sitter flows and the (super)gravity landscape: Part II
Generic solutions are studied in Einstein-scalar gravity in an ansatz that can interpolate between de Sitter and Anti-de Sitter regimes. The scalar potential is arbitrary. All solutions are determined by their end-points in the scalar field space. All such end-points are classified. This provides a complete classification and characterization of the full space of regular solutions. It is shown that there are no regular (Centaur) solutions that interpolate between an AdS boundary and a dS interi…

"Permitting Parking in Driveways" is at Monday's SFBOS land use committee.
I plan to comment against this. It seems to allow driveways to be unlimited width and to remain even after garages are converted to ADUs. This is nakedly an inducement to more driving at the expense of green space, stormwater drainage, active transportation, and public transit.

The Age-Structured Chemostat with Substrate Dynamics as a Control System
Iasson Karafyllis, Dionysis Theodosis, Miroslav Krstic
https://arxiv.org/abs/2511.09963 https://arxiv.org/pdf/2511.09963 https://arxiv.org/html/2511.09963
arXiv:2511.09963v1 Announce Type: new
Abstract: In this work we study an age-structured chemostat model with a renewal boundary condition and a coupled substrate equation. The model is nonlinear and consists of a hyperbolic partial differential equation and an ordinary differential equation with nonlinear, nonlocal terms appearing both in the ordinary differential equation and the boundary condition. Both differential equations contain a non-negative control input, while the states of the model are required to be positive. Under an appropriate weak solution framework, we determine the state space and the input space for this model. We prove global existence and uniqueness of solutions for all admissible initial conditions and all allowable control inputs. To this purpose we employ a combination of Banach's fixed-point theorem with implicit solution formulas and useful solution estimates. Finally, we show that the age-structured chemostat model gives a well-defined control system on a metric space.
toXiv_bot_toot

An international group is organizing an observing campaign through the Citizen Science Working Group of the #LUMIO mission: LUMIO is an ESA space mission to observe lunar #impact flashes (LIFs) from space, on the lunar far side (#Geminid meteoroid stream, 13-15 Dec 2025. During the maximum of the stream, the number of visible impact flashes will be higher than during non-shower times, therefore there is a good chance of detecting at least some impact flashes.
Observations can be made using moderately-sized telescopes and a video camera. On the website https://lif.mi.imati.cnr.it/home_page.php there are now a recording of a thorough talk about the project and its slides at https://lif.mi.imati.cnr.it/open_item_page.php?item_idk=LDB-000000001 and slides about the preferred analysis software ALFI at https://lif.mi.imati.cnr.it/open_item_page.php?item_idk=LDB-000000002 -if you want to join in the LGC please sign on by 21 November.

Anyone who supports or sympathizes with anarcho-syndicalist ideas is welcome to join and help build a friendly, inclusive space for memes and or even meaningful real discussions.
My new Steam group:
https://steamcommunity.com/groups/Anarcho-syndicalist

https://www.space.com/space-exploration/missions/nasas-new-mars-mission-these-twin-satellites-could-reveal-how-the-red-planet-lost-its-atmosphere

Nope nope nope
https://infosec.exchange/@tychotithonus/115555549566148260

Reduced Density Matrix Functional Theory And A Reduced Formulation Of Density Functional Theory
H{\aa}kon Richard Fredheim, Simen Kvaal
https://arxiv.org/abs/2510.12242 https://…

Reduced Density Matrix Functional Theory And A Reduced Formulation Of Density Functional Theory
A mathematical framework for reduced density matrix functional theory (RDMFT) is proposed. The work is inspired by and generalizes the work by E.H.~Lieb [E.H. Lieb, Int. J. Quant. Chem. 24(1983), pp.243--277] on density-functional theory (DFT). We introduce a Banach space for density matrices with finite kinetic energy. The dual space is a rich class of single-particle potentials, i.e., Hermitian forms. The ground state energy of an $N$-fermion system with external forces given by any such Herm…

"So what if, right, what if, we put the data centres in … space!
This idea has a lot of appeal if you’ve read too much sci-fi, and it sounds obvious if you don’t know any practical details."
(Original title: AI data centres — in SPACE! Why DCs in space can’t work)
https://

AI data centres — in SPACE! Why DCs in space can’t work
Spending all the money you have and all the money you can get and all the money you can promise has a number of side effects, such as gigantic data centres full of high-power chips just to run lyin…

I’d never heard of the “commander’s lock” on the space shuttle program…
#NASA #Space
https://

Regularity Theory for the Space Homogeneous Polyatomic Boltzmann Flow
Ricardo Alonso, Milana \v{C}oli\'c
https://arxiv.org/abs/2510.10523 https://arxiv…

Regularity Theory for the Space Homogeneous Polyatomic Boltzmann Flow
In this paper, we study the polyatomic Boltzmann equation based on continuous internal energy, focusing on physically relevant collision kernels of the hard potentials type with integrable angular part. We establish three main results: smoothing effects of the gain collision operator, propagation of velocity and internal energy first-order derivatives of solutions, and exponential decay estimates for singularities of the initial data. These results ultimately lead to a decomposition theorem, sh…

🐧 Calling all open source projects! SCaLE 23x is offering FREE booth space to showcase your work. Nominate your project (or one you love):
👉 https://www.socallinuxexpo.org/blog/23x-booth-grants

Crosslisted article(s) found for physics.space-ph. https://arxiv.org/list/physics.space-ph/new
[1/1]:
- On the Propagation and Damping of Alfvenic Fluctuations in the Outer Solar Corona and Solar Wind
Nikos Sioulas, et al.

UK heat waves overwhelm natural ecological safeguards to increase wildfire risk #UnitedKingdom

UK heat waves overwhelm natural ecological safeguards to increase wildfire risk
Heat waves in the UK have led to unseasonable drying of vegetation bypassing natural ecological processes that limit the spread of wildfires, a new study has found.

Continuous Linear Series
Eduardo Esteves, Antonio Nigro, Pedro Rizzo
https://arxiv.org/abs/2510.11623 https://arxiv.org/pdf/2510.11623

Continuous Linear Series
We parameterize by a fine moduli space all degenerations of linear series to a singular curve which is the union of two smooth components meeting transversally at a single point. For this we introduce a novel object in the study of degenerations of linear series, which is the continuous linear series. Our moduli space can be regarded as a Hilbert quotient, in the terminology introduced by Kapranov, and is a new compactification of Osserman moduli space of exact limit linear series, and conseque…

Für Kontakt zu Weltraumsonden: NASA-Riesenantenne seit Monaten ausgefallen
Über das Deep Space Network kommuniziert die NASA mit Weltraumsonden und Rovern. Schon seit September ist eine der drei größten Antennen aber außer Betrieb.

👽 Finding organics on Mars means absolutely nothing for life
#space

Finding organics on Mars means absolutely nothing for life
The red planet, Mars, may once have been teeming with life, just as Earth is today. Finding "organics" on Mars, however, doesn't mean life.

Reasoning in the Dark: Interleaved Vision-Text Reasoning in Latent Space
Chao Chen, Zhixin Ma, Yongqi Li, Yupeng Hu, Yinwei Wei, Wenjie Li, Liqiang Nie
https://arxiv.org/abs/2510.12603

Reasoning in the Dark: Interleaved Vision-Text Reasoning in Latent Space
Multimodal reasoning aims to enhance the capabilities of MLLMs by incorporating intermediate reasoning steps before reaching the final answer. It has evolved from text-only reasoning to the integration of visual information, enabling the thought process to be conveyed through both images and text. Despite its effectiveness, current multimodal reasoning methods depend on explicit reasoning steps that require labor-intensive vision-text annotations and inherently introduce significant inference l…

A Schauder Basis for Multiparameter Persistence
Peter Bubenik, Zachariah Ross
https://arxiv.org/abs/2510.10347 https://arxiv.org/pdf/2510.10347

A Schauder Basis for Multiparameter Persistence
Certain classes of multiparameter persistence modules may be encoded as signed barcodes, represented as points in a polyhedral subset of Euclidean space, we refer to as signed persistence diagrams. These signed persistence diagrams exist in the dual space of compactly supported, Lipschitz functionals on a polyhedral pair. In the interest of statistics and machine learning on multiparameter persistence modules, we aim to embed these signed persistence diagrams into Banach or Hilbert space. We us…

Weak immersions with second fundamental form in a critical Sobolev space
Dorian Martino, Tristan Rivi\`ere
https://arxiv.org/abs/2510.10594 https://arxiv.o…

Weak immersions with second fundamental form in a critical Sobolev space
We develop the analysis of Lipschitz immersions of $n$-dimensional manifolds into $\mathbb{R}^d$ having their second fundamental forms bounded in the critical Sobolev space $W^{\frac{n}{2}-1,2}$ in dimension $n\geq 4$ even and any codimension. We prove that, while such a weak immersion is not necessary $C^1$, it generates a $C^1$ differential structure on the domain. More precisely, for any such an immersion, there is an atlas in which the first fundamental form is continuous and the transition…

Parareal in time and spectral in space fast L1 quasilinear subdiffusion solver
Josefa Caballero, {\L}ukasz P{\l}ociniczak, Kishin Sadarangani
https://arxiv.org/abs/2510.11023 ht…

Parareal in time and spectral in space fast L1 quasilinear subdiffusion solver
We consider the initial-boundary value problem for a quasilinear time-fractional diffusion equation, and develop a fully discrete solver combining the parareal algorithm in time with a L1 finite-difference approximation of the Caputo derivative and a spectral Galerkin discretization in space. Our main contribution is the first rigorous convergence proof for the parareal-L1 scheme in this nonlinear subdiffusive setting. By constructing suitable energy norms and exploiting the orthogonality of th…

Copper rush pushes Vale to ramp up mining near Amazonian protected areas https://news.mongabay.com/2025/10/copper-rush-pushes-vale-to-ramp-up-mining-near-amazonian-protected-areas/

Copper rush pushes Vale to ramp up mining near Amazonian protected areas
The metal needed in electric cars and solar panels comes with a high cost for Amazonian communities.

product_space: Atlas of Economic Complexity export network
Two networks of economic products, where a pair of products are connected if they are exported at similar rates by the same countries. The data are a projection from a bipartite network of nations and the products they export. Edges weights represent a similarity score (called "proximity"). Data based on UN Comtrade worldwide trade patterns. SITC network based on the Standard International Trade Classification and HS …

Phase space analysis of an exponential model in $f(Q)$ gravity including linear dark-sector interactions
Ivan R. Vasquez, A. Oliveros
https://arxiv.org/abs/2510.12020 https://…

Phase space analysis of an exponential model in $f(Q)$ gravity including linear dark-sector interactions
We present a cosmological analysis of an exponential $f(Q)$ gravity model, within the dynamical systems formalism. Following the method introduced by Böhmer \textit{et al} [Universe \textbf{9} no.4, 166 (2023)], the modified Friedmann modified equations are successfully reduced to an autonomous system. Given the exponential form of $f(Q)$, the equilibrium conditions result in transcendental equations, which we approximate to identify the critical points. We therefore perform a general stabilit…

Hardy spaces for the Lam\'e equation
Juan Antonio Barcel\'o, Salvador Per\'ez-Esteva, Emilio Marmolejo-Olea, Mari Cruz Vilela
https://arxiv.org/abs/2510.10798 https:…

Hardy spaces for the Lamé equation
We study, for $1 \leq p \leq \infty$, the Hardy space $\bm{h}_e^p(\B)$, the elastic analogue of the classical Hardy spaces of harmonic functions in the unit ball of $\mathbb{R}^3$. The space consists of vector-field solutions of the Lamé system satisfying the standard integrability condition on concentric spheres centered at the origin. Using the elastic Poisson kernel, we establish a Fatou-type theorem and show that $\bm{h}_e^p(\B)$ is isomorphic to the $\mathbb{R}^3$-valued Lebesgue space $L…

Starcloud, which launched a satellite with a Nvidia H100 chip in November, says the satellite is running and querying responses from Google's Gemma (Pia Singh/CNBC)
https://www.cnbc.com/2025/12/10/nvidia-backed-starcloud-tr…

‘Greetings, earthlings’: Nvidia-backed Starcloud trains first AI model in space as orbital data center race heats up
The company's Starcloud-1 satellite is running Gemma, an open model from Google, marking the first time in history that an LLM has been trained in outer space.

Totally paracompact spaces and the Menger covering property
Davide Giacopello, Maddalena Bonanzinga, Piotr Szewczak
https://arxiv.org/abs/2511.10252 https://arxiv.org/pdf/2511.10252 https://arxiv.org/html/2511.10252
arXiv:2511.10252v1 Announce Type: new
Abstract: A topological space is totally paracompact if any base of this space contains a locally finite subcover. We focus on a problem of Curtis whether in the class of regular Lindel\"of spaces total paracompactness is equivalent to the Menger covering property. To this end we consider topological spaces with certain dense subsets. It follows from our results that the above equivalence holds in the class of Lindel\"of GO-spaces defined on subsets of reals. We also provide a game-theoretical proof that any regular Menger space is totally paracompact and show that in the class of first-countable spaces the Menger game and a partial open neighborhood assignment game of Aurichi are equivalent. We also show that if $\mathfrak{b}=\omega_1$, then there is an uncountable subspace of the Sorgenfrey line whose all finite powers are Lindel\"of, which is a strengthening of a famous result due to Michael.
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Greenland is shrinking slightly and drifting slowly toward the northwest, GNSS stations reveal https://phys.org/news/2025-10-greenland-slightly-drifting-slowly-northwest.html

Greenland is shrinking slightly and drifting slowly toward the northwest, GNSS stations reveal
Greenland is being twisted, compressed, and stretched. This happens due to plate tectonics and movements in the bedrock, caused by the large ice sheets on top melting and reducing pressure on the subsurface.

I’ve moved my “Entry to Left Wing Anarchist Reading” to my personal website.
It’s styled to look a lot like Google Docs, that was intentional, regardless, it’s hosted in a more private, self-controlled space.
⭐ Read more here: https://midtsveen.codeberg.page/resources.html ⭐<…

he framework upon which the wardrobes will be built starts to take shape.
The headboard sockets are at about the right height :phew:
He was asking if the wardrobe should be backed with some kind of board or if these support struts should remain visible inside the wardrobe.
🤷
I guess it looks neater if you back it, but then there's also some lost space. It'd be painted either way of course.

Biodiversity loss due to land use change could be highly underestimated: Study https://news.mongabay.com/2025/10/biodiversity-loss-due-to-land-use-change-could-be-highly-underestimated-study/

Biodiversity loss due to land use change could be highly underestimated: Study
A survey of Colombian birdlife, which evolved over more than a decade into the world’s largest-ever ornithological study, has found that clearing forests to create new pastures is causing as much as 60% more damage to biodiversity than previously thought. Until now, research into the impact on biodiversity of land use change has generally involved […]

product_space: Atlas of Economic Complexity export network
Two networks of economic products, where a pair of products are connected if they are exported at similar rates by the same countries. The data are a projection from a bipartite network of nations and the products they export. Edges weights represent a similarity score (called "proximity"). Data based on UN Comtrade worldwide trade patterns. SITC network based on the Standard International Trade Classification and HS …

Foul skies, fading light: How air pollution is stealing India's sunshine #India

How air pollution is stealing India's sunshine
India’s sunshine hours have fallen over the past 30 years due to clouds, aerosols and local weather.

Big Bang Nucleosynthesis constraints on space-time noncommutativity
Teodora Maria Matei, Cristian Croitoru, Tiberiu Harko
https://arxiv.org/abs/2510.10685 https://

Big Bang Nucleosynthesis constraints on space-time noncommutativity
We consider the implications of the modified dispersion relations, due to the noncommutativity of the spacetime, for a photon gas filling the early Universe in the framework of the Big Bang Nucleosynthesis (BBN) processes, during the period of light elements formation. We consider three types of deformations present in the dispersion relations for the radiation gas, from which we obtain the low temperature corrections to the energy density and pressure. The cosmological implications of the modi…

Global goal of zero deforestation by 2030 is severely off track https://news.mongabay.com/short-article/2025/10/global-goal-of-zero-deforestation-by-2030-is-severely-off-track/

Global goal of zero deforestation by 2030 is severely off track
Global deforestation hasn’t slowed in any significant way in the four years since 127 countries pledged to halt and reverse forest loss and degradation by 2030. The newly published 2025 Forest Declaration Assessment shows that nations are 63% off track from meeting their zero-deforestation target. To be on track for that goal, deforestation was supposed […]

Construction of harmonic coordinates for weak immersions
Dorian Martino, Tristan Rivi\`ere
https://arxiv.org/abs/2510.10601 https://arxiv.org/pdf/2510.1060…

Construction of harmonic coordinates for weak immersions
We prove that any weak immersion in the critical Sobolev space $W^{\frac{n}{2}+1,2}(\mathbb{R}^n;\mathbb{R}^d)$ in even dimension $n\geq 4$, has global harmonic coordinates if its second fundamental form is small in the Sobolev space $W^{\frac{n}{2}-1,2}(\mathbb{R}^n;\mathbb{R}^d)$. This is a generalization to arbitrary even dimension $n\ge 4$ of a famous result of Müller--Sverak \cite{muller1995} for $n=2$. The existence of such coordinates is a key tool used by the authors in \cite{MarRiv202…

Some ultra-processed foods are as addictive as cigarettes and cocaine #nutrition

Some ultra-processed foods are as addictive as cigarettes and cocaine
Ultra-processed foods are industrially formulated with added sugar, additives and flavorings to be highly rewarding and even addictive.

Global lead exposure still costs trillions and endangers children, study finds #environment

Global lead exposure still costs trillions and endangers children, study finds
Lead poisoning was once thought to largely be a problem of the past, as the globe gradually weaned itself off leaded gasoline in road vehicles in 2021. But has global lead pollution truly been resolved?

Want to make America healthy again? Stop fueling climate change #America

Want to make America healthy again? Stop fueling climate change
If you've been following recent debates about health, you've been hearing a lot about vaccines, diet, measles, Medicaid cuts and health insurance costs—but much less about one of the greatest threats to global public health: climate change.

Light pollution: The silent threat to the planet that's easily solved #environment

Light pollution: The silent threat to the planet that's easily solved
New research has revealed for the first time the full extent of how "Artificial Light At Night" (ALAN) is increasing carbon released by plants and animals across continents—without any increase in the carbon they absorb. The result is reduced carbon storage in ecosystems—which has major implications for climate models and global carbon budgets.

Climate change expands wildfire danger worldwide, study warns #environment

Climate change expands wildfire danger worldwide, study warns
A new study, led by CMCC and Coventry University, reveals that climate change will dramatically expand wildfire danger across the globe, with up to 91% of fire-prone regions experiencing heightened risk by the end of this century. The paper is published in the Journal of Climate.

Researchers track massive ice loss from Berry Glacier in West Antarctica #Antarctica

Researchers track massive ice loss from Berry Glacier in West Antarctica
Berry Glacier, a tributary of the Getz Ice Shelf in West Antarctica, has deteriorated dramatically in the past three decades, according to researchers in the Department of Earth System Science at the University of California, Irvine.

In the Amazon, political systems fail to prioritize the environment https://news.mongabay.com/2025/11/in-the-amazon-political-systems-fail-to-prioritize-the-environment/

In the Amazon, political systems fail to prioritize the environment
Realizing the goals of sustainable development and environmental conservation in the Pan Amazon will require profound changes in the region’s legal and economic framework. This type of change can only be obtained via the political process. Fortunately, there is broad support within Amazonian nations for a change in the policies that drive deforestation and unsustainable […]

Scientists shocked as bumblebees learn to read simple “Morse code” #bee

Scientists shocked as bumblebees learn to read simple “Morse code”
In a first-of-its-kind study, scientists found that bumblebees can tell the difference between short and long light flashes, much like recognizing Morse code. The insects learned which signal led to a sweet reward, demonstrating an unexpected sense of timing. This ability may stem from a fundamental neural process, suggesting that even tiny brains have complex time-tracking mechanisms relevant to evolution and AI.

‘Dismal’ health of world’s forests is threat to humanity, report warns https://www.theguardian.com/environment/2025/oct/14/dismal-health-of-worlds-forests-is-threat-to-humanity-report-warns

Earth enters 'new reality' as coral reefs reach first climate tipping point #environment

Earth enters 'new reality' as coral reefs reach first climate tipping point
The world faces a "new reality" as we have reached the first of many Earth system tipping points that will cause catastrophic harm unless humanity takes urgent action, according to a report released by the University of Exeter and international partners.

At least 41 dead in Mexico floods https://phys.org/news/2025-10-dead-mexico.html In minutes, Mexico's rains swept away homes and people

At least 41 dead in Mexico floods
Floods caused by torrential rains have killed at least 41 people in Mexico in recent days and left behind a trail of destruction, the government said Saturday.

Floods trap people in cars in Spain's Catalonia region #Spain

Floods trap people in cars in Spain's Catalonia region
The highest red alert is declared in one coastal province, as residents are urged to stay indoors.

Big Oil isn’t part of the clean energy push, despite its claims, study shows https://news.mongabay.com/short-article/2025/10/big-oil-isnt-part-of-the-clean-energy-push-despite-its-claims-study-shows/

Big Oil isn’t part of the clean energy push, despite its claims, study shows
A new study that mapped the portfolios of the world’s 250 biggest oil and gas companies found their deployment of renewable energy is paltry: they’re responsible for just 1.42% of the global renewable energy capacity in operation. Despite announcing ambitious plans to embrace renewables, a mere 0.1% of the primary energy they produce comes from […]

A cacao rush drives ‘alarming’ deforestation in Liberia #Liberia

A cacao rush drives ‘alarming’ deforestation in Liberia
A rush to plant cacao in southeastern Liberia is destroying large tracts of rainforest. According to satellite data as well as interviews with local environmental advocates and government officials, the establishment of new plantations in regions that border Côte d’Ivoire is causing extensive deforestation and spurring conflicts over land. While some of the plantations are […]

French MPs Submit Proposal Calling for the End of Caged Farming for Laying Hens in the EU https://vegconomist.com/politics-law/french-mps-submit-proposal-end-caged-farming-laying-hens-eu/

French MPs Submit Proposal Calling for the End of Caged Farming for Laying Hens in the EU - vegconomist - the vegan business magazine
MP Josiane Corneloup from France’s Les Républicains party has submitted a proposal for a European resolution to end caged farming for laying hens.