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Recently, a classical approach to continuous structures has been proposed in [ABBMZ] and [Z] that extends the class of structures falling under the scope of [HI] or [BBHU]. These articles introduce the notion of structures with a standard…

Logic · Mathematics 2025-10-27 Silvia Barbina , Riccardo Camerlo , Domenico Zambella

Let $A$ be a (not necessarily unital) separable non-elementary simple amenable C*-algebra whose tracial basis may not have finite covering dimension and may not be compact but satisfies certain condition (C). We show that $A$ is ${\cal…

Operator Algebras · Mathematics 2024-01-23 Huaxin Lin

We revisit the problem of the stress distribution in a frictional sandpile under gravity, equipped with a new numerical model of granular assemblies with both normal and tangential (frictional) inter-granular forces. Numerical simulations…

Disordered Systems and Neural Networks · Physics 2016-11-30 H. George E. Hentschel , Prabhat K. Jaiswal , Chandana Mondal , Itamar Procaccia , Jacques Zylberg

We study the relation (and differences) between stability and Property (S) in the simple and stably finite framework. This leads us to characterize stable elements in terms of its support, and study these concepts from different sides :…

Operator Algebras · Mathematics 2021-02-19 Joan Bosa

We consider the question of defining interleaving metrics on generalized persistence modules over arbitrary preordered sets. Our constructions are functorial, which implies a form of stability for these metrics. We describe a large class of…

Algebraic Topology · Mathematics 2016-04-01 Peter Bubenik , Vin de Silva , Jonathan Scott

This paper introduces the concept of dimensional stability for spline spaces over T-meshes, providing the first mathematical definition and a preliminary classification framework. We define dimensional stability as an invariant within the…

Numerical Analysis · Mathematics 2025-08-11 Bingru Huang , Falai Chen

We define a new finite type invariant for stably homeomorphic class of curves on compact oriented surfaces without boundaries and extend to a regular homotopy invariant for spherical curves.

Geometric Topology · Mathematics 2008-08-28 M. Fujiwara

A graph pair $(\Gamma, \Sigma)$ is called stable if $\aut(\Gamma)\times\aut(\Sigma)$ is isomorphic to $\aut(\Gamma\times\Sigma)$ and unstable otherwise, where $\Gamma\times\Sigma$ is the direct product of $\Gamma$ and $\Sigma$. A graph is…

Combinatorics · Mathematics 2025-02-04 Xiaomeng Wang , Shou-Jun Xu , Sanming Zhou

Stationary periodic patterns are widespread in natural sciences, ranging from nano-scale electrochemical and amphiphilic systems to mesoscale fluid, chemical and biological media and to macro-scale vegetation and cloud patterns. Their…

Pattern Formation and Solitons · Physics 2020-07-03 Alon Z. Shapira , Hannes Uecker , Arik Yochelis

A useful sampling-reconstruction model should be stable with respect to different kind of small perturbations, regardless whether they result from jitter, measurement errors, or simply from a small change in the model assumptions. In this…

General Mathematics · Mathematics 2007-05-31 E. costa-Reyes , A. Aldroubi , I. Krishtal

Topological data analysis can provide insight on the structure of weighted graphs and digraphs. However, some properties underlying a given (di)graph are hardly mappable to simplicial complexes. We introduce \textit{steady} and…

Computational Geometry · Computer Science 2022-08-30 Mattia G. Bergomi , Massimo Ferri , Antonella Tavaglione

We establish character rigidity for all non-uniform higher-rank irreducible lattices in semisimple groups of characteristic other than 2. This implies stabilizer rigidity for probability measure preserving actions and rigidity of invariant…

Group Theory · Mathematics 2025-07-30 Alon Dogon , Michael Glasner , Yuval Gorfine , Liam Hanany , Arie Levit

Given an initial distribution of sand in an Abelian sandpile, what final state does it relax to after all possible avalanches have taken place? In d >= 3, we show that this problem is P-complete, so that explicit simulation of the system is…

Condensed Matter · Physics 2015-06-25 Cristopher Moore , Martin Nilsson

This paper presents a formal definition of stability for node centrality measures in weighted graphs. It is shown that the commonly used measures of degree, closeness and eigenvector centrality are stable whereas betweenness centrality is…

Social and Information Networks · Computer Science 2014-10-21 Santiago Segarra , Alejandro Ribeiro

We use a graph to define a new stability condition for algebraic moduli spaces of rational curves. We characterize when the tropical compactification of the moduli space agrees with the theory of geometric tropicalization. The…

Algebraic Geometry · Mathematics 2025-10-08 Andy Fry

We study the sandpile model in infinite volume on $\mathbb{Z}^d$. In particular, we are interested in the question whether or not initial configurations, chosen according to a stationary measure $\mu$, are $\mu$-almost surely stabilizable.…

Probability · Mathematics 2009-06-16 Anne Fey , Ronald Meester , Frank Redig

We provide explicit conditions for uniform stability, global asymptotic stability and uniform exponential stability for dynamic equations with a single delay and a nonnegative coefficient. Some examples on nonstandard time scales are also…

Dynamical Systems · Mathematics 2019-02-21 Elena Braverman , Basak Karpuz

Necessary and sufficient conditions for the internal stability of formations whose dynamics are obtained is determined by linear differential equations.

Optimization and Control · Mathematics 2024-03-20 A. V. Lakeyev

We study the parameters range for the fixed point of a class of complex dynamics with the rational fractional function as $R_{n,a,c}(z)=z^n+\frac{a}{z^n}+c$, where $n=1,2,3,4$ is specified, $a$ and $c$ are two complex parameters. The…

Dynamical Systems · Mathematics 2023-08-21 Zhen-Hua Feng , Hai-Bo Sang , B. S. Xie

Characteristic classes of oriented vector bundles can be identified with cohomology classes of the disjoint union of classifying spaces BSO_n of special orthogonal groups SO_n with n=0,1,... A characteristic class is stable if it extends to…

Geometric Topology · Mathematics 2009-10-27 Rustam Sadykov