Results 21 to 30 of about 674,764 (293)

Elliptic curves and Thompson's sporadic simple group [PDF]

open access: yesJournal of Number Theory, 2020
We characterize all infinite-dimensional graded virtual modules for Thompson's sporadic simple group, whose graded traces are weight 3/2 weakly holomorphic modular forms satisfying certain special properties.
Maryam Khaqan
semanticscholar   +1 more source

On some projective triply-even binary codes invariant under the Conway group ${\rm Co}_1$ [PDF]

open access: yesInternational Journal of Group Theory, 2022
A binary triply-even $[98280, 25, 47104]_2$ code invariant under the sporadic simple group ${\rm Co}_1$ is constructed by adjoining the all-ones vector to the faithful and absolutely irreducible 24-dimensional code of length 98280. Using the action of ${\
Bernardo Rodrigues
doaj   +1 more source

ON SOME VERTEX-TRANSITIVE DISTANCE-REGULAR ANTIPODAL COVERS OF COMPLETE GRAPHS

open access: yesUral Mathematical Journal, 2022
In the present paper, we classify abelian antipodal distance-regular graphs \(\Gamma\) of diameter 3 with the following property: \((*)\) \(\Gamma\) has a transitive group of automorphisms \(\widetilde{G}\) that induces a primitive almost simple ...
Ludmila Yu. Tsiovkina
doaj   +1 more source

On Efficient Presentations of the Groups PSL $(2, m)$ [PDF]

open access: yesInternational Journal of Group Theory, 2022
We exhibit presentations of the Von Dyck groups $D(2, 3, m), \ m\ge 3$, in terms of two generators of order $m$ satisfying three relations, one of which is Artin's braid relation. By dropping the relation which fixes the order of the generators we obtain
Orlin Stoytchev
doaj   +1 more source

The conjugacy class ranks of $M_{24}$ [PDF]

open access: yesInternational Journal of Group Theory, 2017
$M_{24}$ is the largest Mathieu sporadic simple group of order $244 823 040 = 2^{10} {cdot} 3^3 {cdot} 5 {cdot} 7 {cdot} 11 {cdot} 23$ and contains all the other Mathieu sporadic simple groups as subgroups.
Zwelethemba Mpono
doaj   +1 more source

On homogeneous spaces with finite anti-solvable stabilizers

open access: yesComptes Rendus. Mathématique, 2022
We say that a group is anti-solvable if all of its composition factors are non-abelian. We consider a particular family of anti-solvable finite groups containing the simple alternating groups for $n\ne 6$ and all 26 sporadic simple groups. We prove that,
Lucchini Arteche, Giancarlo
doaj   +1 more source

Base sizes for sporadic simple groups [PDF]

open access: yesIsrael Journal of Mathematics, 2010
Let \(G\) be a permutation group acting on a set \(\Omega\). A subset of \(\Omega\) is a base for \(G\) if its pointwise stabilizer in \(G\) is trivial. The minimal size of a base for \(G\) is denoted by \(b(G)\). In the present paper, the authors determine the precise value of \(b(G)\) for every primitive almost simple sporadic group \(G\), with the ...
Burness, Timothy C.   +2 more
openaire   +4 more sources

Cherlin’s conjecture for sporadic simple groups [PDF]

open access: yesPacific Journal of Mathematics, 2018
11 pages; to appear in Pacific Journal of ...
Dalla Volta, Francesca   +2 more
openaire   +2 more sources

Local Fusion Graphs and Sporadic Simple Groups [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2015
For a group $G$ with $G$-conjugacy class of involutions $X$, the local fusion graph $\mathcal{F}(G,X)$ has $X$ as its vertex set, with distinct vertices $x$ and $y$ joined by an edge if, and only if, the product $xy$ has odd order. Here we show that, with only three possible exceptions, for all pairs $(G,X)$ with $G$ a sporadic simple group or the ...
Ballantyne, John, Rowley, Peter
openaire   +4 more sources

On conjugacy classes of the F4 group over a field q with characteristic 2

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
This article continues a series of papers devoted to solving the problem by which a non-identity conjugacy class in a finite simple non-abelian group contains commuting elements. Previously, this statement was tested for sporadic, projective, alternating
Yurova Nadezhda
doaj   +1 more source

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