Centre for Mathematics, University of Coimbra - Equidivisible pseudovarieties of semigroups

Equidivisible pseudovarieties of semigroups

Description:

A semigroup is said to be equidivisible if distinct factorizations of an element have always a common refinement. Groups and free semigroups are examples of equidivisible semigroups.

We give a complete characterization of pseudovarieties of semigroups whose finitely generated relatively free profinite semigroups are equidivisible.

This is joint work with Jorge Almeida.

Date:

2016-11-15

Start Time:

15:30

Speaker:

Alfredo Costa (CMUC, Univ. Coimbra)

Institution:

CMUC, Univ. Coimbra

Place:

Room 5.5

Research Groups:

-Algebra, Logic and Topology

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