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Multivariate extreme-value analysis is concerned with the extremes in a multivariate random sample, that is, points of which at least some components have exceptionally large values. Mathematical theory suggests the use of max-stable models…

Probability · Mathematics 2012-04-03 Johan Segers

In a many-to-one matchingmodel with responsive preferences in which indifferences are allowed, we study three notions of core, three notions of stability, and their relationships. We show that (i) the core contains the stable set, (ii) the…

Theoretical Economics · Economics 2022-03-31 Agustín G. Bonifacio , Noelia Juarez , Pablo Neme , Jorge Oviedo

We prove a homotopy invariance result for the first cohomology group of the special unitary group $\mathrm{SU}_3(F[t])$ with coefficients in irreducible representations of $\mathrm{PGL}_2(F)$. The main theorem establishes that this…

K-Theory and Homology · Mathematics 2026-04-07 Claudio Bravo

A general theoretical framework based on group-subgroup and group-supergroup relations is proposed to describe and to derive interpenetrating nets.

Materials Science · Physics 2018-05-07 Igor A. Baburin

We formulate and prove a version of the Segal Conjecture for infinite groups. For finite groups it reduces to the original version. The condition that G is finite is replaced in our setting by the assumption that there exists a finite model…

Algebraic Topology · Mathematics 2020-04-29 Wolfgang Lueck

In this paper, we will prove some sufficient conditions for the solvability of groups.

Group Theory · Mathematics 2009-12-07 Hung P. Tong-Viet

The orthogonal groups are a series of simple Lie groups associated to symmetric bilinear forms. There is no analogous series associated to symmetric trilinear forms. We introduce an infinite dimensional group-like object that can be viewed…

Representation Theory · Mathematics 2021-09-27 Andrew Snowden

Working in the soft-element (classical) viewpoint, we introduce \emph{soft bitopological groups}: soft groups endowed with two soft topologies such that the induced topologies on the set of soft elements make the soft-element group into a…

General Topology · Mathematics 2026-02-16 S. Ray

In this paper, we introduce the notions of motivic representation stability that is an algebraic counterpart of the notion of representation stability. In the process, we also introduce the notion of motivic decomposition for varieties…

Algebraic Geometry · Mathematics 2025-05-13 Márton Hablicsek , Jesse Vogel

We prove a homological stability theorem for the subgroup of the mapping class group acting as the identity on some fixed portion of the first homology group of the surface. We also prove a similar theorem for the subgroup of the mapping…

Geometric Topology · Mathematics 2023-11-15 Andrew Putman

We prove completeness for the main examples of infinite-dimensional Lie groups and some related topological groups.

Functional Analysis · Mathematics 2017-10-20 Helge Glockner

We are now witnessing a rapid growth of a new part of group theory which has become known as "statistical group theory". A typical result in this area would say something like ``a random element (or a tuple of elements) of a group G has a…

Group Theory · Mathematics 2007-05-23 Alexandre V. Borovik , Alexei G. Myasnikov , Vladimir Shpilrain

A popular method for selecting the number of clusters is based on stability arguments: one chooses the number of clusters such that the corresponding clustering results are "most stable". In recent years, a series of papers has analyzed the…

Machine Learning · Statistics 2010-07-08 Ulrike von Luxburg

We prove homological stability for a twisted version of the Houghton groups and their multidimensional analogues. Based on this, we can describe the homology of the Houghton groups and that of their multidimensional analogues over constant…

Algebraic Topology · Mathematics 2016-09-21 Peter Patzt , Xiaolei Wu

Groups, in which every subgroup containing some fixed primary cyclic subgroup has a complement, are investigated.

Group Theory · Mathematics 2007-10-08 O. O. Trebenko

We review recent stability and separation results in volume comparison problems and use them to prove several hyper- plane inequalities for intersection and projection bodies.

Metric Geometry · Mathematics 2012-07-27 Alexander Koldobsky

In this paper we formulate and prove a general theorem of stability of exactness properties under the pro-completion, which unifies several such theorems in the literature and gives many more. The theorem depends on a formal approach to…

Category Theory · Mathematics 2020-10-22 Pierre-Alain Jacqmin , Zurab Janelidze

Using the notion of existentially closed structures, we obtain embedding theorems for groups and Lie algebras. We also prove the existence of some groups and Lie algebras with prescribed properties.

Group Theory · Mathematics 2014-05-07 M. Shahryari

We propose and develop a theory that allows to characterize epimorphisms of profinite groups in terms of indecomposable epimorphisms.

Group Theory · Mathematics 2025-09-16 Dan Haran

D. K. Biss (Topology and its Applications 124 (2002) 355-371) introduced the topological fundamental group and presented some interesting basic properties of the notion. In this article we intend to extend the above notion to homotopy…

Algebraic Topology · Mathematics 2011-02-02 Helen Ghane , Zainab Hamed , Behrooz Mashayekhy , Hanieh Mirebrahimi