Results 101 to 110 of about 866 (222)

Unitary posets and amalgamations of pomonoids

, 2014
In 1927, Schreier proved that amalgams of groups are always embeddable in the category of groups. However, this is not true in the category of semigroups, as shown by Kimura.
Al Subaiei, Bana
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Graphs and finite transformation semigroups

Discrete Mathematics, 1973
Given a finite set X and a semigroup S of transformations of X, we study the orbitoids of S on X and on X^2 and, assuming S transitive, those of the statbilizer in S of an element @a @? X. The action of S as a semigroup of endomorphisms of some relevant graphs (having X as vertex set) is also considered.
openaire   +1 more source

The homomorphisms between full transformation semigroup Tn and symmetric inverse semigroup ISn(全变换半群Tn与对称逆半群ISn之间的同态)

Zhejiang Daxue xuebao. Lixue ban, 2013
刻画了有限集合N上全变换半群Tn与对称逆半群ISn之间的所有同态.
LINShuang(林双), YANGXiu-liang(杨秀良)   +1 more
doaj   +1 more source

Global existence of solutions to a hyperbolic-elliptic chemotaxis model on networks with nonhomogeneous boundary conditions

Results in Applied Mathematics
In this paper, we investigate a coupled hyperbolic-elliptic chemotaxis system posed on a network under nonhomogeneous boundary conditions. First, the boundary data are homogenized via a linear transformation.
Yafeng Li
doaj   +1 more source

ISOMORPHISM PROBLEMS FOR TRANSFORMATION SEMIGROUPS

Semigroups and Formal Languages, 2007
Many people have studied the problem of describing all isomorphisms between transformation semigroups dened on sets and between linear transformation semigroups dened on vector spaces. In this paper, we summarise some of that work, as well as recent work showing that Baer-Levi semigroups dened on sets are never isomorphic to their linear analogue ...
openaire   +2 more sources

On the rank of transformation semigroup T-(n,T-m)

, 2018
WOS: 000439579600033Let T-n and S-n be the full transformation semigroup and the symmetric group on X-n = {1, ..., n}, respectively. For n, m is an element of Z(+) with m
Toker, Kemal, Ayik H., Toker K., Ayik, Hayrullah   +3 more
core   +1 more source

An algebraic characterization of self-generating chemical reaction networks using semigroup models. [PDF]

J Math Biol, 2023
Loutchko D.
europepmc   +1 more source

Polarity in signed symmetric group and signed transformation semigroup

, 2019
More details can be found in the full paper. Keywords:polarity, semigroup, signed symmetric group, signed transformation semigroup, signed singular mapping DOI: 10.7176/MTM/9-7-03 Publication date: July 31st ...
M.M., Mogbonju,, A.O., Adeniji,, I.A., Ogunleke,   +2 more
core  

Semigroup models for biochemical reaction networks. [PDF]

J Math Biol, 2023
Loutchko D.
europepmc   +1 more source

Generating the full transformation semigroup using order preserving mappings

, 2008
For a linearly ordered set X we consider the relative rank of the semigroup of all order preserving mappings OX on X modulo the full transformation semigroup TX.
P. M. Higgins, et al.
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