Results 1 to 10 of about 192 (33)

Astrovirus Infection in Cattle with Nonsuppurative Meningoencephalitis in South Korea [PDF]

open access: yesViruses, 2021
Neurological diseases in cattle can be caused by several infectious agents. Astroviruses are increasingly recognized as the causative agent of encephalitis in various animals, including humans. In this study, a neuroinvasive astrovirus (BoAstV 20B05) was
Sook-Young Lee   +8 more
doaj   +2 more sources

Base sizes of primitive groups of diagonal type

open access: yesForum of Mathematics, Sigma, 2023
Let G be a permutation group on a finite set $\Omega $ . The base size of G is the minimal size of a subset of $\Omega $ with trivial pointwise stabiliser in G. In this paper, we extend earlier work of Fawcett by determining the precise base
Hong Yi Huang
doaj   +1 more source

The maximal size of a minimal generating set

open access: yesForum of Mathematics, Sigma, 2023
A generating set for a finite group G is minimal if no proper subset generates G, and $m(G)$ denotes the maximal size of a minimal generating set for G. We prove a conjecture of Lucchini, Moscatiello and Spiga by showing that there exist $a,b>
Scott Harper
doaj   +1 more source

The edge-regular complete maps

open access: yesOpen Mathematics, 2020
A map is called edge-regular if it is edge-transitive but not arc-transitive. In this paper, we show that a complete graph Kn{K}_{n} has an orientable edge-regular embedding if and only if n=pd>3n={p}^{d}\gt 3 with p an odd prime such that pd≡3{p}^{d ...
Yu Xue, Lou Ben Gong
doaj   +1 more source

Finite groups with star-free noncyclic graphs

open access: yesOpen Mathematics, 2019
For a finite noncyclic group G, let Cyc(G) be the set of elements a of G such that 〈a, b〉 is cyclic for each b of G. The noncyclic graph of G is a graph with the vertex set G ∖ Cyc(G), having an edge between two distinct vertices x and y if 〈x, y〉 is not
Ma Xuanlong, Walls Gary L., Wang Kaishun
doaj   +1 more source

Hypercontractivity on the symmetric group

open access: yesForum of Mathematics, Sigma
The hypercontractive inequality is a fundamental result in analysis, with many applications throughout discrete mathematics, theoretical computer science, combinatorics and more.
Yuval Filmus   +3 more
doaj   +1 more source

Permutation groups, partition lattices and block structures

open access: yesForum of Mathematics, Sigma
Let G be a finite transitive permutation group on $\Omega $ . The G-invariant partitions form a sublattice of the lattice of all partitions of $\Omega $ , having the further property that all its elements are uniform (that is, have all parts ...
Marina Anagnostopoulou-Merkouri   +2 more
doaj   +1 more source

On a question of permutation groups acting on the power set

open access: yesOpen Mathematics
In this work, we settle a conjecture about the number of set-orbits of permutation group acting on the power set.
Li Jinbao, Yang Yong, You Mengxi
doaj   +1 more source

Strongly Base-Two Groups. [PDF]

open access: yesVietnam J Math, 2023
Burness TC, Guralnick RM.
europepmc   +1 more source

Home - About - Disclaimer - Privacy