Results 1 to 10 of about 16 (16)

A lattice theoretical interpretation of generalized deep holes of the Leech lattice vertex operator algebra

open access: yesForum of Mathematics, Sigma, 2023
We give a lattice theoretical interpretation of generalized deep holes of the Leech lattice VOA $V_\Lambda $ . We show that a generalized deep hole defines a ‘true’ automorphism invariant deep hole of the Leech lattice. We also show that there is a
Ching Hung Lam, Masahiko Miyamoto
doaj   +1 more source

A question of Frohardt on $2$ -groups, skew translation quadrangles of even order and cyclic STGQs

open access: yesForum of Mathematics, Sigma, 2023
We solve a fundamental question posed in Frohardt’s 1988 paper [6] on finite $2$ -groups with Kantor familes, by showing that finite groups K with a Kantor family $(\mathcal {F},\mathcal {F}^*)$ having distinct members $A, B \in \mathcal
Koen Thas
doaj   +1 more source

On Semisymmetric Cubic Graphs of Order 20p2, p Prime

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A simple graph is called semisymmetric if it is regular and edge-transitive but not vertex-transitive. Let p be an arbitrary prime. Folkman proved [Regular line-symmetric graphs, J. Combin. Theory 3 (1967) 215–232] that there is no semisymmetric graph of
Shahsavaran Mohsen   +1 more
doaj   +1 more source

Boolean lattices in finite alternating and symmetric groups

open access: yesForum of Mathematics, Sigma, 2020
Given a group G and a subgroup H, we let $\mathcal {O}_G(H)$ denote the lattice of subgroups of G containing H. This article provides a classification of the subgroups H of G such that $\mathcal {O}_{G}(H)$ is Boolean of rank at least
Andrea Lucchini   +3 more
doaj   +1 more source

Pentavalent arc-transitive Cayley graphs on Frobenius groups with soluble vertex stabilizer

open access: yesOpen Mathematics, 2019
A Cayley graph Γ is said to be arc-transitive if its full automorphism group AutΓ is transitive on the arc set of Γ. In this paper we give a characterization of pentavalent arc-transitive Cayley graphs on a class of Frobenius groups with soluble vertex ...
Liu Hailin
doaj   +1 more source

Transcriptomic Response of Huanglongbing-Infected Citrus sinensis Following Field Application of a Microbial Fermentation Product. [PDF]

open access: yesFront Plant Sci, 2021
Lally RD   +9 more
europepmc   +1 more source

Weakly-exceptional quotient singularities

open access: yesOpen Mathematics, 2012
Sakovics Dmitrijs
doaj   +1 more source

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