Results 21 to 30 of about 228,875 (264)

A hierarchy of maximal intersecting triple systems [PDF]

open access: yesOpuscula Mathematica, 2017
We reach beyond the celebrated theorems of Erdȍs-Ko-Rado and Hilton-Milner, and a recent theorem of Han-Kohayakawa, and determine all maximal intersecting triples systems.
Joanna Polcyn, Andrzej Ruciński
doaj   +1 more source

Central Extensions and Nijenhuis Operators of Hom-δ-Jordan Lie Triple Systems

open access: yesAdvances in Mathematical Physics, 2022
In this paper, the equivalence of central extensions and Hα,αV3T,V is proven in the study in Hom-δ-Jordan Lie triple systems. The concepts of Nijenhuis operators of Hom-δ-Jordan Lie triple systems are given. Moreover, a trivial deformation is got.
Qiang Li, Lili Ma
doaj   +1 more source

Hereditary Properties of Triple Systems [PDF]

open access: yesCombinatorics, Probability and Computing, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yoshiharu Kohayakawa   +2 more
openaire   +4 more sources

Almost all Steiner triple systems are almost resolvable

open access: yesForum of Mathematics, Sigma, 2020
We show that for any n divisible by 3, almost all order-n Steiner triple systems admit a decomposition of almost all their triples into disjoint perfect matchings (that is, almost all Steiner triple systems are almost resolvable).
Asaf Ferber, Matthew Kwan
doaj   +1 more source

Triple metamorphosis of twofold triple systems

open access: yesDiscrete Mathematics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Charles C. Lindner   +2 more
openaire   +2 more sources

On split Lie color triple systems

open access: yesOpen Mathematics, 2019
In order to begin an approach to the structure of arbitrary Lie color triple systems, (with no restrictions neither on the dimension nor on the base field), we introduce the class of split Lie color triple systems as the natural generalization of split ...
Cao Yan, Zhang Jian, Cui Yunan
doaj   +1 more source

Systematic analysis for triple points in all magnetic symmorphic systems and symmetry-allowed coexistence of Dirac points and triple points

open access: yesNew Journal of Physics, 2018
Similar to Weyl fermions, a recently discovered topological fermion ‘triple point’ can be generated from the splitting of Dirac fermion in the systems with inversion symmetry (IS) breaking or time-reversal symmetry (TRS) breaking.
Chi-Ho Cheung   +5 more
doaj   +1 more source

LEIBNIZ TRIPLE SYSTEMS

open access: yesCommunications in Contemporary Mathematics, 2014
We define Leibniz triple systems in a functorial manner using the algorithm of Kolesnikov and Pozhidaev which converts identities for algebras into identities for dialgebras; this algorithm is a concrete realization of the white Manin product introduced by Vallette by the permutad Perm introduced by Chapoton.
Bremner, Murray R.   +1 more
openaire   +2 more sources

Directed triple systems

open access: yesJournal of Combinatorial Theory, Series A, 1973
AbstractDirected triple systems are an example of block designs on directed graphs. A block design on a directed graph can be defined as follows. Let G be a directed graph of k vertices which contain no loops. Let S be a set of υ elements. A collection of k-subsets of S with an assignment of the elements of each k-subset to the vertices of G is called ...
Stephen H. Y. Hung, N. S. Mendelsohn
openaire   +2 more sources

Hermitian (ϵ,δ)-Freudenthal-Kantor Triple Systems and Certain Applications of *-Generalized Jordan Triple Systems to Field Theory

open access: yesAdvances in High Energy Physics, 2014
We define Hermitian (ϵ,δ)-Freudenthal-Kantor triple systems and prove a structure theorem. We also give some examples of triple systems that are generalizations of the u(N)⊕u(M) and sp(2N)⊕u(1) Hermitian 3-algebras. We apply a *-generalized Jordan triple
Noriaki Kamiya, Matsuo Sato
doaj   +1 more source

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