Tootfinder

Natürlich freut sich das Mütterchen, wenn sie zum Geburtstag dasselbe coole iPhone-Modell bekommt, das die Tochter hat. Wenn die Tochter ihr dann aber auch noch die alte, fast identische Hülle mit dem schwarzen Band dazu schenkt, dann kann es schon mal passieren, dass DIE TOCHTER JETZT NOCHMAL 25 KM RADELN MUSS, um das SCHEISS-Handy zurückzubringen … *grummel*

This https://arxiv.org/abs/2306.00388 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Faster cosmological analysis with power spectrum without simulations
$ $Future surveys could obtain tighter constraints on the cosmological parameters with the galaxy power spectrum than with the Cosmic Microwave Background. However, the inclusion of multiple overlapping tracers, redshift bins, and more non-linear scales means that generating the necessary ensemble of simulations for model-fitting presents a computational burden. In this work, we combine full-shape fitting of galaxy power spectra, analytical covariance matrix estimates, the MOPED (Massively Opti…

A coalition of collegiate and professional press freedom groups urges campus administrators to respect the rights of student journalists covering protests (College Media Association)
https://collegemedia.org/release-colle

RELEASE: Collegiate Media Associations, Supporters Urge Campus Administrators to Support Student Journalists - College Media Association
College Media Association, Associated Collegiate Press, Society of Professional Journalists, Student Press Law Center and Foundation for Individual Rights and Expression have joined together to urge campus administrators to be supportive of student journalists covering current events.

The new Descendents/Circle Jerks 7" split of each band covering 3 of the others' songs was only available via limited vinyl (that sold out INSTANTLY) and at the shows the bands are doing together, and it's explicitly not officially streaming anywhere.
So, luckily, nice folks put it up on YouTube so hermits like myself can hear it.
It is AWESOME, of course

Wrote my first Templater-QuickAdd Combo in Obsidian, this will come handy, but I am not just doing workflow stuff, I am actually connecting stuff together so that it can't go missing since it's tied together, aka how my brain works anyway, but with the years and all the topics I am covering I need external help for fast context switching

Adaptive Dual Covariance Steering with Active Parameter Estimation
Jacob W. Knaup, Panagiotis Tsiotras
https://arxiv.org/abs/2403.15590 https://

Adaptive Dual Covariance Steering with Active Parameter Estimation
This work examines the optimal covariance steering problem for systems subject to unknown parameters that enter multiplicatively with the state and control, in addition to additive disturbances. In contrast to existing works, the unknown parameters are modeled as random variables and are estimated online. This work proposes the utilization of recursive least squares estimation for efficient parameter identification. A dual control problem is formulated in which the effect of the planned control…

Reflected entropy and timelike entanglement in $\textrm{T}\bar{\textrm{T}}$ deformed CFT$_2$s
Debarshi Basu, Vinayak Raj
https://arxiv.org/abs/2402.07253 h…

Reflected entropy and timelike entanglement in $\textrm{T}\bar{\textrm{T}}$ deformed CFT$_2$s
We develop a covariant formalism to investigate the mixed state entanglement structure of time-dependent boosted subsystems in $\textrm{T}\bar{\textrm{T}}$ deformed CFT$_2$s through the reflected entropy. To this end we utilize the conformal perturbation theory to obtain the Rényi reflected entropy through the partition function on replica manifold. The correction to the reflected entropy to the first order in the deformation parameter $μ$ in then obtained in the replica limit for finite temp…

558.0792 kHz: IRIB Radio Iran's extensive synchronuous network is no longer really that synchronuous, as one of the 22 transmitters listed for this frequency has slipped almost 80 Hz off 😝
Obviously, with such a large network, it's hardly even possible to tell which of the 22 units is the culprit... #mediumwave

Hypercomplex structures arising from twistor spaces
Shuo Wang, Bin Xu
https://arxiv.org/abs/2402.13592 https://arxiv.org/pdf/2402.135…

Hypercomplex structures arising from twistor spaces
A hyperkähler manifold is defined as a Riemannian manifold endowed with three covariantly constant complex structures that are quaternionically related. A twistor space is characterized as a holomorphic fiber bundle $p: \mathcal{Z} \rightarrow \mathbb{CP}^1$ possesses properties such as a family of holomorphic sections whose normal bundle is $\bigoplus^{2n}\mathcal{O}(1)$, a holomorphic section of $Λ^2(N\mathcal{Z})\otimes p^*(\mathcal{O}(2))$ that defines a symplectic form on each fiber, and…

This https://arxiv.org/abs/2311.14819 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On a Fiber Conjecture of Wan
For a prime $p$ and $p$-power $q$, let $f(x)\in\mathbb{F}_q[x]$ with $\textrm{deg}\ f$ coprime to $p$. As $λ$ varies in $\overline{\mathbb{F}_p^\times}$, Wan has conjectured that the $p$-adic Newton polygon of the corresponding Artin-Schreier curve given by $λf$ is constant. That is, \[ \textrm{NP}(f) = \textrm{NP}(λf). \] In this paper, we prove this conjecture when $λ\in\mathbb{F}_p^\times$ and provide a detailed counterexample showing it is false in general.