Tootfinder

This https://arxiv.org/abs/2402.07823 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Recursive expansion of Tanner graph: a method to construct stabilizer codes with high coding rate
Quantum stabilizer codes face the problem of low coding rate. In this article, following the idea of recursively expanding Tanner graph proposed in our previous work, we try to construct new stabilizer codes with high coding rate, and propose XZ-type Tanner-graph-recursive-expansion (XZ-TGRE) code and Tanner-graph-recursive-expansion hypergraph product (TGRE-HP) code. XZ-TGRE code have zero asymptotic coding rate, but its coding rate tends to zero extremely slowly with the growth of code length…

Disney verpatzt den Staffelstart von Doctor Who https://www.heise.de/news/Doctor-Who-Disney-verpatzt-Staffelstart-9715184.html
Muss nun meine Frau überzeugen, auf Englisch mit deutschem Untertitel zu schauen. Wenn's ihr nicht gefällt …

Doctor Who: Disney+ verpatzt Staffelstart
Fans der Serie Doctor Who vermissen zum Staffelstart auf Disney+ die deutsche Synchronfassung.

Quaternion-Based Attitude Stabilization Using Synergistic Hybrid Feedback With Minimal Potential Functions
Xin Tong, Qingpeng Ding, Haiyang Fang, Shing Shin Cheng
https://arxiv.org/abs/2404.08326

Quaternion-Based Attitude Stabilization Using Synergistic Hybrid Feedback With Minimal Potential Functions
This paper investigates the robust global attitude stabilization problem for a rigid-body system using quaternion-based feedback. We propose a novel synergistic hybrid feedback with the following notable features: (1) It demonstrates central synergism by utilizing a minimal number of potential functions; (2) It ensures consistency with respect to the unit quaternion representation of rigid-body attitude; (3) Its state-feedback laws incorporate a shared action term that steers the system toward …

Riemannian optimization on the symplectic Stiefel manifold using second-order information
Rasmus Jensen, Ralf Zimmermann
https://arxiv.org/abs/2404.08463 h…

Riemannian optimization on the symplectic Stiefel manifold using second-order information
Riemannian optimization is concerned with problems, where the independent variable lies on a smooth manifold. There is a number of problems from numerical linear algebra that fall into this category, where the manifold is usually specified by special matrix structures, such as orthogonality or definiteness. Following this line of research, we investigate tools for Riemannian optimization on the symplectic Stiefel manifold. We complement the existing set of numerical optimization algorithms with…

Vortex pattern stabilization in thin films resulting from shear thickening of active suspensions
Henning Reinken, Andreas M. Menzel
https://arxiv.org/abs/2403.09523

Vortex pattern stabilization in thin films resulting from shear thickening of active suspensions
The need for structuring on micrometer scales is abundant, for example, in view of phononic applications. We here outline a novel approach based on the phenomenon of active turbulence on the mesoscale. As we demonstrate, a shear-thickening carrier fluid of active microswimmers intrinsically stabilizes regular vortex patterns of otherwise turbulent active suspensions. The fluid self-organizes into a periodically structured nonequilibrium state. Introducing additional passive particles of interme…

This https://arxiv.org/abs/2404.04703 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csDB_…

Aleph Filter: To Infinity in Constant Time
Filter data structures are widely used in various areas of computer science to answer approximate set-membership queries. In many applications, the data grows dynamically, requiring their filters to expand along with the data that they represent. However, existing methods for expanding filters cannot maintain stable performance, memory footprint, and false positive rate at the same time. We address this problem with Aleph Filter, which makes the following contributions. (1) It supports all oper…

Interviews and court filings: 10 former Pinduoduo staff describe surveillance after leaving and lawsuits to enforce strict non-competes and stifle competition (Financial Times)
https://t.co/pyzhxWyEzn

This https://arxiv.org/abs/2404.07469 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On the stability of the spherically symmetric solution to an inflow problem for an isentropic model of compressible viscous fluid
We investigate an inflow problem for the multi-dimensional isentropic compressible Navier-Stokes equations. The fluid under consideration occupies the exterior domain of unit ball, $Ω=\{x\in\mathbb{R}^n\,\vert\, |x|\ge 1\}$, and a constant stream of mass is flowing into the domain from the boundary $\partialΩ=\{|x|=1\}$. The existence and uniqueness of a spherically symmetric stationary solution, denoted as $(\tildeρ,\tilde{u})$, is first proved by I. Hashimoto and A. Mat…

This https://arxiv.org/abs/2404.07469 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On the stability of the spherically symmetric solution to an inflow problem for an isentropic model of compressible viscous fluid
We investigate an inflow problem for the multi-dimensional isentropic compressible Navier-Stokes equations. The fluid under consideration occupies the exterior domain of unit ball, $Ω=\{x\in\mathbb{R}^n\,\vert\, |x|\ge 1\}$, and a constant stream of mass is flowing into the domain from the boundary $\partialΩ=\{|x|=1\}$. The existence and uniqueness of a spherically symmetric stationary solution, denoted as $(\tildeρ,\tilde{u})$, is first proved by I. Hashimoto and A. Mat…

A look at the rise and fall of Emad Mostaque and Stability AI, including how Mostaque's relationship with Coatue and Lightspeed blossomed and fell apart (Fortune)
https://fortune.com/2024/03/27/inside-stability-ai-em…

Inside the rise and fall of AI’s open source king and his $1 billion startup—and the bad breakup with key investors Coatue and Lightspeed
Stability AI, led by CEO Emad Mostaque, emerged as one of the first high-flying startups in the generative AI boom, garnering a $1 billion seed valuation. Within months the relationship with investors broke down and spurred a campaign to oust Mostaque, who resigned on Saturday.