Results 1 to 10 of about 256 (26)

Weights in a Benson-Solomon block

open access: yesForum of Mathematics, Sigma, 2023
To each pair consisting of a saturated fusion system over a p-group together with a compatible family of Külshammer-Puig cohomology classes, one can count weights in a hypothetical block algebra arising from these data.
Justin Lynd, Jason Semeraro
doaj   +1 more source

Finding involutions with small support [PDF]

open access: yes, 2012
We show that the proportion of permutations $g$ in $S_n$ or $A_n$ such that $g$ has even order and $g^{|g|/2}$ is an involution with support of cardinality at most $\lceil n^\varepsilon \rceil$ is at least a constant multiple of $\varepsilon$. Using this
Niemeyer, Alice C., Popiel, Tomasz
core   +2 more sources

A characterization of projective special unitary group U3(5) by nse

open access: yesArab Journal of Mathematical Sciences, 2014
Let G be a group and ω(G) be the set of element orders of G. Let k ∈ ω(G) and sk be the number of elements of order k in G. Let nse(G) = {sk∣k ∈ ω(G)}. In Khatami et al. and Liu’s works L3(2) and L3(4) are unique determined by nse(G).
Shitian Liu
doaj   +1 more source

Amenability versus non‐exactness of dense subgroups of a compact group

open access: yesJournal of the London Mathematical Society, Volume 100, Issue 2, Page 592-622, October 2019., 2019
Abstract Given a countable residually finite group, we construct a compact group K and two elements w and u of K with the following properties: The group generated by w and u3 is amenable, the group generated by w and u contains a copy of the given group, and these two groups are dense in K.
Masato Mimura
wiley   +1 more source

OD-characterization of alternating groups Ap+d

open access: yesOpen Mathematics, 2017
Let An be an alternating group of degree n. Some authors have proved that A10, A147 and A189 cannot be OD-characterizable. On the other hand, others have shown that A16, A23+4, and A23+5 are OD-characterizable.
Yang Yong, Liu Shitian, Zhang Zhanghua
doaj   +1 more source

A REFINED WARING PROBLEM FOR FINITE SIMPLE GROUPS

open access: yesForum of Mathematics, Sigma, 2015
Let $w_{1}$ and $w_{2}$ be nontrivial words in free groups $F_{n_{1}}$ and $F_{n_{2}}$, respectively. We prove that, for all sufficiently large finite nonabelian simple groups $G$, there exist subsets $C_{1}\subseteq w_{1}(G)$ and $C_{2}\subseteq w_{2}(G)
MICHAEL LARSEN, PHAM HUU TIEP
doaj   +1 more source

GENERATION OF SECOND MAXIMAL SUBGROUPS AND THE EXISTENCE OF SPECIAL PRIMES

open access: yesForum of Mathematics, Sigma, 2017
Let $G$ be a finite almost simple group. It is well known that $G$
TIMOTHY C. BURNESS   +2 more
doaj   +1 more source

On a conjecture of Gluck [PDF]

open access: yes, 2014
Let $F(G)$ and $b(G)$ respectively denote the Fitting subgroup and the largest degree of an irreducible complex character of a finite group $G$. A well-known conjecture of D. Gluck claims that if $G$ is solvable then $|G:F(G)|\leq b(G)^{2}$.
Cossey, James P.   +3 more
core   +1 more source

Impartial avoidance and achievement games for generating symmetric and alternating groups [PDF]

open access: yes, 2016
We study two impartial games introduced by Anderson and Harary. Both games are played by two players who alternately select previously-unselected elements of a finite group.
Benesh, Bret J.   +2 more
core   +3 more sources

A New Characterization of Projective Special Unitary Groups PSU3(3n)

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2019
One of an important problems in finite groups theory, is characterization of groups by specific property. However, in the way the researchers, proved that some of groups by properties such as, elements order, set of elements with same order, graphs, . . .
Ebrahimzadeh Behnam, Mohammadyari Reza
doaj   +1 more source

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