Results 131 to 140 of about 354,394 (221)

On (m, n)-ideals and (m, n)-regular ordered semigroups [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2016
Let m, n be non-negative integers. A subsemigroup A of an ordered semigroup (S,  ,  is called an (m, n)-ideal of S if (i) Am SAn  A, and (ii) if x  A, y  S such that y  x, then y  A. In this paper, necessary and sufficient conditions for every (
Limpapat Bussaban, Thawhat Changphas
doaj  

Ordered groupoids and the holomorph of an inverse semigroup

open access: yes, 2015
We present a construction for the holomorph of an inverse semigroup, derived from the cartesian closed structure of the category of ordered groupoids.
N. D. Gilbert   +3 more
core   +1 more source

P A ON (m, n)-IDEALS OF AN ORDERED SEMIGROUP

open access: yes, 2015
: In this paper we introduce the concept of (m, n)-simple ordered semigroups extending the notion of simple ordered semigroups, and prove that an ordered semigroup (S, ·, ≤) does not contain proper (m, n)-ideals if and only if it is both (m, 0)-simple ...
Thawhat Changphas
core  

AN ALTERNATIVE MEASUREMENT STRUCTURE: THE POSITIVELY ORDERED PARTIAL SEMIGROUP WITH IDENTITY (HALFGROUPOID)

open access: yes, 1984
A set of axioms which define a positively ordered partial semigroup with identity, an alternative measurement system, is introduced. The positively ordered partial semigroup with identity is defined by a set A of objects, an order among those objects, an
HOLLAND, SUSAN GENSEMER
core   +1 more source

Semigroup structure in compactifications of ordered semigroups [PDF]

open access: yesCzechoslovak Mathematical Journal, 1977
Pym, J. S., Vasudeva, H. L.
openaire   +1 more source

Home - About - Disclaimer - Privacy