Results 121 to 130 of about 866 (222)

Classification of Solution Operators Semigroups for Abstract Cauchy Problems

Известия Иркутского государственного университета: Серия "Математика", 2014
The paper is devoted to studying solution operators semigroups and its generators for abstract Cauchy problem in Banach space. It is considered two types of families — "classical” that defined on whole Banach space and possesses the semigroup property ...
V.S. Parfenenkova
doaj  

Interior and closure operators on residuated ordered semigroup(剩余序半群的内部和闭包算子)

Zhejiang Daxue xuebao. Lixue ban
In this paper, the concept of inner and closure operators on residuated ordered semigroups is introduced, some of their related algebraic properties are studied.
李毅君(LI Yijun), 王军涛(WANG Juntao)   +1 more
doaj   +1 more source

On the annihilator graphs of partial transformation semigroups

Arab Journal of Basic and Applied Sciences
Let [Formula: see text] and [Formula: see text] be a partial transformation semigroup on [Formula: see text] Obviously, the empty set [Formula: see text] is a zero element of [Formula: see text] and denoted by 0.
Chollawat Pookpienlert, Nuttawoot Nupo, Yanisa Chaiya   +2 more
doaj   +1 more source

Permutations of a semigroup that map to inverses

, 2014
We investigate the question as to when the members of a finite regular semigroup may be permuted in such a way that each member is mapped to one of its inverses. In general this is not possible.
Higgins, Peter M
core   +1 more source

Co-annihilating graphs of partial transformation semigroups: structure and basic invariants

Arab Journal of Basic and Applied Sciences
Let [Formula: see text] and [Formula: see text] Denote by [Formula: see text] the partial transformation semigroup on [Formula: see text] Clearly, the empty set [Formula: see text] is a zero element of [Formula: see text] which is written as 0.
Chollawat Pookpienlert, Nuttawoot Nupo, Yanisa Chaiya   +2 more
doaj   +1 more source

The ordinarization transform of a numerical semigroup and semigroups with a large number of intervals

Journal of Pure and Applied Algebra, 2012
A numerical semigroup is said to be ordinary if it has all its gaps in a row. Indeed, it contains zero and all integers from a given positive one. One can define a simple operation on a non-ordinary semigroup, which we call here the ordinarization transform, by removing its smallest non-zero non-gap (the multiplicity) and adding its largest gap (the ...
openaire   +2 more sources

Extremal problems in combinatorial semigroup theory

, 2017
In this thesis we shall consider three types of extremal problems (i.e. problems involving maxima and minima) concerning semigroups. In the first chapter we show how to construct a minimal semigroup presentation that defines a group of non-negative ...
Mitchell, James David
core  

Ergodic decompositions of Dirichlet forms under order isomorphisms. [PDF]

J Evol Equ, 2023
Schiavo LD, Wirth M.
europepmc   +1 more source

Green's relations and regularity for semigroups of transformations that preserve order and a double direction equivalence

, 2012
Science and Technology Foundation of Guizhou Province, P.R. China [LKS [2010] 02]Let T-X be the full transformation semigroup on a set X, T-E*( X) = {alpha is an element of T-X : for all x, y is an element of X, (x, y) is an element of E double left ...
曾吉文, You, Tai-Jie, Deng, Lun-Zhi, Zeng, Ji-Wen   +3 more
core  

On Some Transformation Semigroups [PDF]

Indiana University Mathematics Journal, 1956
openaire   +2 more sources