Results 101 to 110 of about 462 (185)

Posets of shuffles

open access: yesJournal of Combinatorial Theory, Series A, 1988
A poset of shuffles is defined as follows: Let \b{x}\(=x_ 1x_ 2...x_ m\) and \b{y}\(=y_ 1y_ 2...y_ m\) be words, where it is assumed that the letters occurring in \b{x} and \b{y} are all distinct. Let \(W_{\underline x,\underline y}\) denote the set of all words \b{w} with letters from \b{x} and \b{y} such that the restriction of \b{w} to the letters ...
openaire   +2 more sources

An investigation on hyper S-posets over ordered semihypergroups

open access: yesOpen Mathematics, 2017
In this paper, we define and study the hyper S-posets over an ordered semihypergroup in detail. We introduce the hyper version of a pseudoorder in a hyper S-poset, and give some related properties.
Tang Jian, Davvaz Bijan, Xie Xiang-Yun
doaj   +1 more source

Signed posets

open access: yesJournal of Combinatorial Theory, Series A, 1993
One sure sign of a successful generalization of a particular theory is an extension of language and technique to a larger domain permitting one to reconstruct considerable parts of previous theory on such a new basis. Another such sign is to provide new interpretations and insights captured by such an extended theory, especially involving results ...
openaire   +2 more sources

Consistent posets. [PDF]

open access: yesSoft comput, 2021
Chajda I, Länger H.
europepmc   +1 more source

Poset positional games

open access: yesDiscrete Mathematics
We propose a generalization of positional games, supplementing them with a restriction on the order in which the elements of the board are allowed to be claimed. We introduce poset positional games, which are positional games with an additional structure -- a poset on the elements of the board.
Bagan, Guillaume   +7 more
openaire   +7 more sources

Sheffer operation in relational systems. [PDF]

open access: yesSoft comput, 2022
Chajda I, Länger H.
europepmc   +1 more source

On Boolean posets of numerical events. [PDF]

open access: yesAdv Comput Intell, 2021
Dorninger D, Länger H.
europepmc   +1 more source

On Quillenʼs Theorem A for posets

open access: yesJournal of Combinatorial Theory, Series A, 2011
7 pages.
openaire   +2 more sources

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