Mal'cev products and the locality of pseudovarieties of semigroups
 
 
Description:  The global of a pseudovariety of semigroups V is the smallest pseudovariety of semigroupoids which contains V, where members of V are viewed as one-vertex semigroupoids. When the global of the pseudovariety V is characterized by properties of the local semigroups of its semigroupoids, the pseudovariety V is said to be local. We study a family of Mal'cev operators of the form Z\malcev( ) showing that some of them preserve the locality of pseudovarieties. In the process, we deal with the localization operator L( ) and the semidirect product operator ( )*D establishing some interplay between them.
This is a joint work with A. Costa.
Date:  2012-04-24
Start Time:   15:00
Speaker:  Ana Paula Escada (CMUC/Univ. Coimbra)
Institution:  CMUC/Univ. Coimbra
Place:  Sala 5.5
Research Groups: -Algebra, Logic and Topology
See more:   <Main>  
 
© Centre for Mathematics, University of Coimbra, funded by
Science and Technology Foundation
Powered by: rdOnWeb v1.4 | technical support