Results 51 to 60 of about 12,641,387 (374)
Psychological methods, 2017 In multigroup factor analysis, different levels of measurement invariance are accepted as tenable when researchers observe a nonsignificant (&Dgr;)&khgr;2 test after imposing certain equality constraints across groups.
Terrence D. Jorgensen +3 more
semanticscholar +1 more source
Permutations destroying arithmetic progressions in finite cyclic groups [PDF]
, 2015 A permutation \pi of an abelian group G is said to destroy arithmetic progressions (APs) if, whenever (a,b,c) is a non-trivial 3-term AP in G, that is c-b=b-a and a,b,c are not all equal, then (\pi(a),\pi(b),\pi(c)) is not an AP.
Hegarty, Peter, Martinsson, Anders
core +2 more sources
Permutation groups with restricted stabilizers [PDF]
Journal of Algebra, 2022 19 pages; to appear in Journal of Algebra (special issue in memory of Jan Saxl)
Burness, Timothy C, Shalev, Aner
openaire +5 more sources
On the lifting of the Dade group
, 2018 For the group of endo-permutation modules of a finite \(p\)-group, there is a surjective reduction modulo \(p\) homomorphism from a complete discrete valuation ring of characteristic 0 to its residue field of characteristic \(p\).
Lassueur, Caroline, Thévenaz, Jacques
core +1 more source
The decomposition of an arbitrary $2^w\times 2^w$ unitary matrix into signed permutation matrices
, 2020 Birkhoff's theorem tells that any doubly stochastic matrix can be decomposed as a weighted sum of permutation matrices. A similar theorem reveals that any unitary matrix can be decomposed as a weighted sum of complex permutation matrices.
De Baerdemacker, Stijn, De Vos, Alexis
core +1 more source
Permutation polytopes and indecomposable elements in permutation groups
Journal 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 +3 more sources
Permutation polynomials and group permutation polynomials [PDF]
Bulletin of the Australian Mathematical Society, 2001 Permutation polynomials of the form xτf (x3) over a finite field give rise to group permutation polynomials. We give a group theoretic criterion and some other criteria in terms of symmetric functions and power functions.
June Bok Lee, Young Ho Park
openaire +2 more sources
Dihedral Group in The Ancient Genetic
Jurnal Matematika Integratif, 2020 The standard genetic code consist of four nucleotide bases which encode genes to produce amino acids needed by living things. The addition of new base (Dummy) causes a sequence of bases to become five nucleotide bases called ancient genetic codes.
Isah Aisah, Eddy Djauhari, Asep Singgih
doaj +1 more source
Reduction of the Hall-Paige conjecture to sporadic simple groups [PDF]
, 2009 A complete mapping of a group $G$ is a permutation $\phi:G\rightarrow G$ such that $g\mapsto g\phi(g)$ is also a permutation. Complete mappings of $G$ are equivalent to tranversals of the Cayley table of $G$, considered as a latin square.
Wilcox, Stewart
core +2 more sources
Finite geometry and permutation groups: some polynomial links [PDF]
Rendiconti di Matematica e delle Sue Applicazioni, 2006 Any set of points in a finite projective space PG(n, q) defines a matroid which is representable over GF(q). The Tutte polynomial of the matroid is a two-variable polynomial which includes a lot of numerical information about the configuration of points.
Peter J. Cameron
doaj