Results 81 to 90 of about 6,864 (172)

A Pexiderized Cosine Functional Equation

open access: yesAnnales Mathematicae Silesianae
Let S be a semigroup and K be a field. In a recent article we introduced a new cosine functional equation g(xyz) − g(x)g(yz) − g(y)g(xz) − g(z)g(xy) + 2g(x)g(y)g(z) = 0 for an unknown function g : S → K.
Ebanks Bruce
doaj   +1 more source

The planar modular partition monoid

open access: yes, 2016
The primary contribution of this thesis is to introduce and examine the planar modular partition monoid for parameters m, k ‚Äöv†v† Z>0, which has simultaneously and independently generated interest from other researchers as outlined within.
Ham, NC (15936899)
core   +1 more source

On the set of Set(n)'s [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
The set of Set(n)'s for natural numbers n is constructed. For this set it is proved that it is a commutative semi-group. The conditions for which it is a monoid are given.
Krassimir T. Atanassov
doaj   +1 more source

Semiretracts of a free monoid [PDF]

open access: yes, 1994
The generating set of a semiretract of a free monoid is an infix code and a biprefix code. If a free monoid is generated by n elements then any nest of semiretracts contains at most n + 1 distinct ...
Anderson, J.A.
core   +1 more source

Submonoids of integer group determinants

open access: yesResearches in Mathematics
For a finite group $G$, let $S(G)$ denote the set of all integer values obtained from the group determinant by substituting integers for its variables. Such values are called integer group determinants.
Y. Wakamoto, N. Yamaguchi
doaj   +1 more source

On cofree S-spaces and cofree S-flows

open access: yesApplied General Topology, 2012
Let S-Tych be the category of Tychonoff S-spaces for a topological monoid S. We study the cofree S-spaces and cofree S-flows over topological spaces and we prove that for any topological space X and a topological monoid S, the function space C(S,X) with ...
Behnam Khosravi
doaj   +1 more source

On Almost Everywhere K-Additive Set-Valued Maps

open access: yesAnnales Mathematicae Silesianae
Let X be an Abelian group, Y be a commutative monoid, K ⊂Y be a submonoid and F : X → 2Y \ {∅} be a set-valued map. Under some additional assumptions on ideals ℐ1 in X and ℐ2 in X2, we prove that if F is ℐ2-almost everywhere K-additive, then there ...
Jabłońska Eliza
doaj   +1 more source

Confluence of the Chinese Monoid [PDF]

open access: yes, 2019
The Chinese monoid, related to Knuth’s Plactic monoid, is of great interest in algebraic combinatorics. Both are ternary monoids, generated by relations between words of three symbols. The relations are, for a totally ordered alphabet, cba = cab = bca if
Klop, Jan Willem   +5 more
core   +1 more source

The join of split graphs whose completely regular endomorphisms form a monoid

open access: yesOpen Mathematics, 2017
In this paper, completely regular endomorphisms of the join of split graphs are investigated. We give conditions under which all completely regular endomorphisms of the join of two split graphs form a monoid.
Hou Hailong, Song Yanhua, Gu Rui
doaj   +1 more source

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