Results 31 to 40 of about 97,370 (265)

Invariance groups of finite functions and orbit equivalence of permutation groups

open access: yesOpen Mathematics, 2015
Which subgroups of the symmetric group Sn arise as invariance groups of n-variable functions defined on a k-element domain? It appears that the higher the difference n-k, the more difficult it is to answer this question.
Horváth Eszter K.   +3 more
doaj   +1 more source

Distance in cayley graphs on permutation groups generated by $k$ $m$-Cycles [PDF]

open access: yesTransactions on Combinatorics, 2017
‎‎In this paper‎, ‎we extend upon the results of B‎. ‎Suceav{u{a}} and R‎. ‎Stong [Amer‎. ‎Math‎. ‎Monthly‎, ‎110 (2003) 162--162]‎, ‎which they computed the minimum number of 3-cycles needed to generate an even permutation‎.
Zohreh Mostaghim   +1 more
doaj   +1 more source

Information transmission and signal permutation in active flow networks

open access: yesNew Journal of Physics, 2018
Recent experiments show that both natural and artificial microswimmers in narrow channel-like geometries will self-organise to form steady, directed flows.
Francis G Woodhouse   +2 more
doaj   +1 more source

The round functions of KASUMI generate the alternating group

open access: yesJournal of Mathematical Cryptology, 2015
We show that the round functions of the KASUMI block cipher for odd and even round type generate the alternating group on the message space. Moreover, under the assumption of independent round keys, we prove that also the KASUMI two-round functions and ...
Sparr Rüdiger, Wernsdorf Ralph
doaj   +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

Permutation polytopes and indecomposable elements in permutation groups

open access: yesJournal of Combinatorial Theory, Series A, 2006
18 pages. To appear in the Journal of Combinatorial Theory, Series A. A corollary about solvable primitive permutation groups has been added.
Robert M. Guralnick, David Perkinson
openaire   +2 more sources

On derangements in simple permutation groups

open access: yesForum of Mathematics, Sigma
Let $G \leqslant \mathrm {Sym}(\Omega )$ be a finite transitive permutation group and recall that an element in G is a derangement if it has no fixed points on $\Omega $ . Let $\Delta (G)$ be the set of derangements in G and define
Timothy Burness, Marco Fusari
doaj   +1 more source

Health‐Related Quality of Life and Symptom Severity Among Patients With PIK3CA‐Related Overgrowth Spectrum: A Mixed‐Methods Study to Understand Real‐World Experience With Alpelisib Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu   +8 more
wiley   +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 the Erdos-Ko-Rado property of finite groups of order a product of three primes

open access: yesElectronic Journal of Graph Theory and Applications, 2019
Let G be a subgroup of the symmetric group Sn. Then G has the Erdos-Ko-Rado (EKR) property, if the size of any intersecting subset of G is bounded above by the size of a point stabilizer of G.
Modjtaba Ghorbani, Mina Rajabi-Parsa
doaj   +1 more source

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