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Related papers: Fusion systems on small p-groups

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We show that every fusion system on a p-group S is equal to the fusion system associated to a discrete group G with the property that every p-subgroup of G is conjugate to a subgroup of S.

Group Theory · Mathematics 2007-05-23 Ian J Leary , Radu Stancu

We determine the structure of automorphism group or each nonsplit metacyclic 2-group. This completes the work on automorphism groups of metacyclic $p$-groups.

Group Theory · Mathematics 2017-06-27 Haimiao Chen

A p-local finite group is an algebraic structure with a classifying space which has many of the properties of p-completed classifying spaces of finite groups. In this paper, we construct a family of 2-local finite groups, which are exotic…

Algebraic Topology · Mathematics 2014-11-11 Ran Levi , Bob Oliver

We classify those 2-groups G which factorise as a product of two disjoint cyclic subgroups A and B, transposed by an automorphism of order 2. The case where G is metacyclic having been dealt with elsewhere, we show that for each e>2 there…

Group Theory · Mathematics 2011-12-13 Shaofei Du , Gareth Jones , Jin Ho Kwak , Roman Nedela , Martin Skoviera

We study a certain family of simple fusion systems over finite $3$-groups, ones that involve Todd modules of the Mathieu groups $2M_{12}$, $M_{11}$, and $A_6=O^2(M_{10})$ over $\mathbb{F}_3$, and show that they are all isomorphic to the…

Group Theory · Mathematics 2022-08-18 Bob Oliver

In a 1969 article, A. Dress described the prime ideals of the Burnside ring of a finite group G and the inclusion relations between them. One may ask whether similar results exist for the Burnside ring of a saturated fusion system F on a…

Group Theory · Mathematics 2022-07-21 Nicolas Lemoine

Let $p$ be an odd prime and $S$ a nonabelian finite $p$-group. In [9, 10], they proposed the following conjecture: if $\mathcal{F}$ be a transitive fusion system over a finite $p$-group $S$, then $S$ is either extraspecial of order $p^{3}$…

Group Theory · Mathematics 2024-12-05 Rui Gao , Heguo Liu , Xingzhong Xu , Sheng Yang

Let $G$ be a finite group and $H$ be a subgroup of $G$. Then $H$ is called a weakly $S\Phi$-supplemented subgroup of $G$, if there exists a subgroup $T$ of $G$ such that $G =HT$ and $H \cap T \leq \Phi (H) H_{sG}$, where $H_{sG}$ denotes…

Group Theory · Mathematics 2024-07-29 Shengmin Zhang , Zhencai Shen

We prove that the D\'iaz-Park's sharpness conjecture holds for saturated fusion systems defined on a Sylow $p$-subgroup of the group ${\rm G}_2(p)$, for $p\geq 5$.

Group Theory · Mathematics 2022-12-08 Valentina Grazian , Ettore Marmo

The transporter systems of Oliver and Ventura and the localities of Chermak are classes of algebraic structures that model the $p$-local structures of finite groups. Other than the transporter categories and localities of finite groups,…

Group Theory · Mathematics 2023-03-22 Ellen Henke , Assaf Libman , Justin Lynd

We prove that an isomorphism between saturated fusion systems over the same finite p-group is detected on the elementary abelian subgroups of the hyperfocal subgroup if p is odd, and on the abelian subgroups of the hyperfocal subgroup of…

Group Theory · Mathematics 2016-11-15 Ellen Henke , Jun Liao

We introduce the notion of a pro-fusion system on a pro-p group, which generalizes the notion of a fusion system on a finite p-group. We also prove a version of Alperin's Fusion Theorem for pro-fusion systems.

Representation Theory · Mathematics 2017-05-17 Radu Stancu , Peter Symonds

We consider a wide family of fuzzy integrals on arbitrary compactum which generalize well know Sugeno integral. Such generalization is obtained using some non-discrete analogs of pseudo-grouping functions.

General Topology · Mathematics 2023-12-27 Taras Radul

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

The theory of saturated fusion systems resembles in many parts the theory of finite groups. However, some concepts from finite group theory are difficult to translate to fusion systems. For example, products of normal subsystems with other…

Group Theory · Mathematics 2022-06-14 Ellen Henke

For a finite group G of Lie type and a prime p, we compare the automorphism groups of the fusion and linking systems of G at p with the automorphism group of G itself. When p is the defining characteristic of G, they are all isomorphic,…

Group Theory · Mathematics 2016-01-19 Carles Broto , Jesper M. Møller , Bob Oliver

We describe the structure of finite groups with $\mathfrak{F}$-subnormal or self-normalizing primary cyclic subgroups when $\mathfrak{F}$ is a subgroup-closed saturate superradical formation containing all nilpotent groups. We prove that…

Group Theory · Mathematics 2020-11-11 Irina Sokhor

The assignment of classifying spectra to saturated fusion systems was suggested by Linckelmann and Webb and has been carried out by Broto, Levi and Oliver. A more rigid (but equivalent) construction of the classifying spectra is given in…

Algebraic Topology · Mathematics 2009-02-27 Kari Ragnarsson

An explicit and elementary proof is given to the fact that Suzuki and Ree groups can be decomposed into the product of 4 of their Sylow p-subgroups, where p is the defining characterictic.

Group Theory · Mathematics 2015-02-19 Andrei Smolensky

Saturated fusion systems are categories generalizing important aspects of conjugacy of $p$-subgroups in finite groups. It was shown by Chermak that there are group-like structures called regular localities associated to saturated fusion…

Group Theory · Mathematics 2026-04-01 Ellen Henke