An idempotent semigroup is determined by its pseudogroup of local automorphisms

Author(s):  
B. M. Shaĭn
Keyword(s):  
2012 ◽  
Vol 87 (1) ◽  
pp. 1-9 ◽  
Author(s):  
IGOR DOLINKA

AbstractAn algebra A is said to be finitely related if the clone Clo(A) of its term operations is determined by a finite set of finitary relations. We prove that each finite idempotent semigroup satisfying the identity xyxzx≈xyzx is finitely related.


2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Barış Albayrak ◽  
Didem Yeşil ◽  
Didem Karalarlioğlu Camci

In this study, we define new semigroup structures using the set S S = a ∈ S | a S a = 0 which is called the source of semiprimeness for a semigroup S with zero element. S S − idempotent semigroup, S S − regular semigroup, S S − reduced semigroup, and S S − nonzero divisor semigroup which are generalizations of idempotent, regular, reduced, and nonzero divisor semigroups in semigroup theory are investigated, and their basic properties are determined. In addition, we adapt some well-known results in semigroup theory to these new semigroups.


1996 ◽  
Vol 38 (1) ◽  
pp. 11-18 ◽  
Author(s):  
M. V. Clase ◽  
E. Jespers ◽  
A. Del Río

Let S be a semigroup and let be an S-graded ring. Rs = 0 for all but finitely many elements s ∈ S1, then R is said to have finite support. In this paper we concern ourselves with the question of whether a graded ring R with finite support inherits a given ring theoretic property from the homogeneous subrings Re corresponding to idempotent semigroup elements e.


Sign in / Sign up

Export Citation Format

Share Document