Results 41 to 50 of about 116,475 (312)

Solvable intransitive permutation groups with constant movement [PDF]

open access: yesJournal of Mahani Mathematical Research
In this paper, all solvable intransitive permutation groups with constant movement are classified and we show that they are one of the following groups: a cyclic $p$-group, an elementary abelian $p$-group, a Frobenius group of order 12 or a Frobenius ...
Mehdi Rezaei   +2 more
doaj   +1 more source

On the diameter of permutation groups

open access: yesEuropean Journal of Combinatorics, 1992
The authors give an asymptotic universal upper bound for the diameter of all Cayley graphs of all permutation groups of degree \(n\), namely, they show that for any set of permutations \(S\) in \(S_ n\), every permutation in the subgroup generated by \(S\) can be expressed as a product of length at most \(\exp((n\cdot\ln n)^{1/2}(1+o(1)))\) of factors ...
László Babai, Ákos Seress
openaire   +2 more sources

Base sizes for simple groups and a conjecture of Cameron [PDF]

open access: yes, 2009
Let G be a permutation group on a finite set ?. A base for G is a subset B C_ ? whose pointwise stabilizer in G is trivial; we write b(G) for the smallest size of a base for G. In this paper we prove that b(G) ?
Burness, TC   +5 more
core   +1 more source

Global permutation tests for multivariate ordinal data: alternatives, test statistics, and the null dilemma [PDF]

open access: yes, 2013
We discuss two-sample global permutation tests for sets of multivariate ordinal data in possibly high-dimensional setups, motivated by the analysis of data collected by means of the World Health Organisation's International Classification of Functioning,
Cieza, Alarcos   +2 more
core   +1 more source

Quantum statistics: the indistinguishability principle and the permutation group theory [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2007
About two decades ago we have shown mathematically that besides bosons and fermions, it could exist a third kind of particles in nature that was named gentileons. Our results have been obtained rigorously within the framework of quantum mechanics and the
M. Cattani
doaj   +1 more source

On Power Graph Representation of Γ_1-nonderanged Permutation Group

open access: yesUMYU Scientifica Journal
A -nonderanged permutation group  is a permutation group such that  where . In this paper, an undirected power graph representation of -nonderanged permutation group denoted by  has been studied.
Anas Yusuf, Almustapha Umar
doaj   +1 more source

Prime order derangements in primitive permutation groups

open access: yes, 2011
Let G be a transitive permutation group on a finite set Ω of size at least 2. An element of G is a derangement if it has no fixed points on Ω. Let r be a prime divisor of |Ω|.
Giudici, M.   +10 more
core   +1 more source

The Dade group of (almost) extraspecial $p$-groups. [PDF]

open access: yes, 2004
In this paper, we determine a presentation by explicit generators and relations for the Dade group of all (almost) extraspecial $p$-groups. The proof of the main result uses the cohomological properties of the Tits building corresponding to the natural ...
Mazza, Nadia, Bouc, Serge
core   +1 more source

On leaf permutative theories and occurrence permutation groups

open access: yesElectronic Notes in Theoretical Computer Science, 2003
AbstractLeaf permutative theories contain variable-permuting equations, so that rewriting a term may lead to an exponential number of terms which are only permutations of it. In [1] Avenhaus and Plaisted propose to represent such sets by stratified terms, and to deduce directly with these.
Thierry Boy de la Tour, Mnacho Echenim
openaire   +1 more source

Configuration synthesis of generalized deployable units via group theory [PDF]

open access: yesMechanical Sciences, 2016
The generalized deployable mechanism is composed of generalized links and generalized kinematic pairs. The generalized links include the flexible members, springs, and cables etc.
T. Li, J. Jiang, H. Dong, L. Zhang
doaj   +1 more source

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