Results 101 to 110 of about 1,661 (220)

Semigroups of order-decreasing transformations

open access: yes, 2012
Let X be a totally ordered set and consider the semigroups of orderdecreasing (increasing) full (partial, partial one-to-one) transformations of X. In this Thesis the study of order-increasing full (partial, partial one-to-one) transformations has been
Umar, Abdullahi
core  

On ideals in regular ternary semigroups

open access: yes, 2008
In this paper we study some interesting properties of regular ternary semigroups, completely regular ternary semigroups, intra-regular ternary semigroups and characterize them by using various ideals of ternary ...
Maity, Bimal   +2 more
core   +1 more source

Cayley automaton semigroups

open access: yes, 2015
Let S be a semigroup, C(S) the automaton constructed from the right Cayley graph of S with respect to all of S as the generating set and ∑(C(S)) the automaton semigroup constructed from C(S). Such semigroups are termed Cayley automaton semigroups. For
McLeman, Alexander Lewis Andrew
core  

Interval-Valued Semiprime Fuzzy Ideals of Semigroups

open access: yesAdvances in Fuzzy Systems, 2014
We introduce the notion of (i-v) semiprime (irreducible) fuzzy ideals of semigroups and investigate its different algebraic properties. We study the interrelation among (i-v) prime fuzzy ideals, (i-v) semiprime fuzzy ideals, and (i-v) irreducible fuzzy ...
Sukhendu Kar, Paltu Sarkar, Kostaq Hila
doaj   +1 more source

Regularizing Properties of Nonlinear Semigroups [PDF]

open access: yesProceedings of the American Mathematical Society, 1987
It is known that some classes of m m -accretive operators
openaire   +1 more source

Domination of semigroups generated by regular forms

open access: yes, 2023
We give a representation for regular forms associated with dominated $C_0$-semigroups which, in turn, characterises domination of $C_0$-semigroups associated with regular forms.
Djida, Jean-Daniel   +3 more
core   +2 more sources

On Weakly Regular Fuzzy Ordered Ternary Semigroups

open access: yes, 2016
Weakly regular ordered ternary semigroups are characterized in terms of fuzzy left, fuzzy right, fuzzy quasi-ideals and fuzzy bi-ideals, which generalizes and unifies results on weakly regular ordered semigroups and weakly regular ternary ...
Du, Xiankun, Bashir, Shahida
core   +2 more sources

Semigroup presentations

open access: yes, 2012
In this thesis we consider in detail the following two fundamental problems for semigroup presentations: 1. Given a semigroup find a presentation defining it. 2. Given a presentation describe the semigroup defined by it.
Ruškuc, Nik
core  

Characterizations of regular and intra-regular ordered $\Gamma$-semihypergroups in terms of bi-$\Gamma$-hyperideals

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
The concept of $\Gamma$-semihypergroups is a generalization of semigroups, a generalization of semihypergroups and a generalization of $\Gamma$-semigroups.
S. Omidi, B. Davvaz, K. Hila
doaj   +1 more source

Regular Dilation on Semigroups [PDF]

open access: yes, 2018
Dilation theory originated from Sz.Nagy's celebrated dilation theorem which states that every contractive operator has an isometric dilation. Regular dilation is one of many fruitful directions that aims to generalize Sz.Nagy's dilation theorem to the ...
Li, Boyu
core  

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