English
Related papers

Related papers: Fusion Systems for Profinite Groups

200 papers

We study dp-minimal infinite profinite groups that are equipped with a uniformly definable fundamental system of open subgroups. We show that these groups have an open subgroup $A$ such that either $A$ is a direct product of countably many…

Logic · Mathematics 2020-08-21 Tim Clausen

In this paper, we investigate the structure of finite group G by assuming that the intersections between p-sylowizers of some p-subgroups of G and $O^p(G)$ are S-permutable in G. We obtain some criterions for p-nilpotency of a finite group.

Group Theory · Mathematics 2023-06-26 Yaxin Gao , Xianhua Li , Donglin Lei

Computer based techniques for recognizing finitely presented groups are quite powerful. Tools available for this purpose are outlined. They are available both in stand-alone programs and in more comprehensive systems. A general…

Group Theory · Mathematics 2008-02-03 George Havas , Edmund F. Robertson

We develop JSJ decomposition theory of pro-p groups.

Group Theory · Mathematics 2025-12-01 Pavel Zalesskii

We prove additive and multiplicative partition theorems, obtaining combinatorial results for p-quasicyclic groups, where p is a prime number. We also get density results for p-quasicyclic groups via left F{\o}lner sequences of non-empty…

Combinatorics · Mathematics 2014-08-19 Andreas Koutsogiannis

This thesis has three goals related to the automorphism groups of finite $p$-groups. The primary goal is to provide a complete proof of a theorem showing that, in some asymptotic sense, the automorphism group of almost every finite…

Group Theory · Mathematics 2007-11-20 Geir T. Helleloid

We demonstrate how a generic automated theorem prover can be applied to establish the non-orderability of groups. Our approach incorporates various tools such as positive cones, torsions, generalised torsions and cofinal elements.

Geometric Topology · Mathematics 2023-10-10 Alexei Lisitsa , Zipei Nie , Alexei Vernitski

The affine Hilbert function is a classical algebraic object that has been central, among other tools, to the development of the polynomial method in combinatorics. Owing to its concrete connections with Gr\"obner basis theory, as well as…

Combinatorics · Mathematics 2021-11-16 S. Venkitesh

A group $G$ is said to have restricted centralizers if for each $g$ in $G$ the centralizer $C_G(g)$ either is finite or has finite index in $G$. Shalev showed that a profinite group with restricted centralizers is virtually abelian. Given a…

Group Theory · Mathematics 2021-12-30 Cristina Acciarri , Pavel Shumyatsky

Saturated fusion systems are categories modeling properties of conjugacy of p-subgroups in finite groups. It was shown by Chermak that they correspond nicely to group-like structures called localities. In this paper we start to explore how…

Group Theory · Mathematics 2026-04-01 Ellen Henke , Edoardo Salati

This work introduces a new kind of affine semigroups called $P$-semigroups. Within the framework of $\mathcal C$-semigroups, we define a finite-state automaton associated to them. Moreover, this automaton determines whether a $\mathcal…

Commutative Algebra · Mathematics 2025-10-16 J. I. Farrán , J. C. Rosales , R. Tapia-Ramos , A. Vigneron-Tenorio

We prove that the factorization of a saturated fusion system over a discrete $p$-toral group as a product of indecomposable subsystems is unique up to normal automorphisms of the fusion system and permutations of the factors. In particular,…

Group Theory · Mathematics 2022-11-08 Bob Oliver

In this paper we investigate some strong convergence theorems for partial sums with respect to Vilenkin system.

Classical Analysis and ODEs · Mathematics 2018-06-12 G. Tutberidze

For a prime $p$, fusion systems over discrete $p$-toral groups are categories that model and generalize the $p$-local structure of Lie groups and certain other infinite groups in the same way that fusion systems over finite $p$-groups model…

Group Theory · Mathematics 2025-05-07 Carles Broto , Ran Levi , Bob Oliver

In this paper, we study the structure of a generalized near-group fusion category and classified it when it is slightly degenerate.

Quantum Algebra · Mathematics 2019-03-22 Jingcheng Dong

We extend the notion of a commuting poset for a finite group to p-blocks and fusion systems, and we generalize a result, due originally to Alperin and proved independently by Aschbacher and Segev, to commuting graphs of blocks, with a very…

Representation Theory · Mathematics 2011-08-29 Adam Glesser , Markus Lickelmann

We prove that a finitely generated pro-$p$ group $G$ acting on a pro-$p$ tree $T$ splits as a free amalgamated pro-$p$ product or a pro-$p$ HNN-extension over an edge stabilizer. If $G$ acts with finitely many vertex stabilizers up to…

Group Theory · Mathematics 2023-02-14 Zoé Chatzidakis , Pavel Zalesskii

In this paper, using some properties of fundamental groups and covering spaces of connected polyhedra and CW-complexes, we present topological proof for some famous theorems about finitely presented groups.

Algebraic Topology · Mathematics 2010-12-09 Behrooz Mashayekhy , Hanieh Mirebrahimi

It is shown that a finitely generated pro-p group G which is a virtually free pro-p product splits either as a free pro-p product with amalgamation or as a pro-p HNN-extension over a finite p-group. More precisely, G is the pro-p…

Group Theory · Mathematics 2016-03-15 Thomas Weigel , Pavel Zalesskii

We prove a general finite convergence theorem for "upward-guarded" fixpoint expressions over a well-quasi-ordered set. This has immediate applications in regular model checking of well-structured systems, where a main issue is the eventual…

Symbolic Computation · Computer Science 2012-03-19 C. Baier , N. Bertrand , Ph. Schnoebelen
‹ Prev 1 4 5 6 7 8 10 Next ›