Abstract (EN):
We investigate the rank of pseudovarieties defined by several of the variants of nilpotency conditions for semigroups in the sense of Mal'cev. For several of them, we provide finite bases of pseudoidentities. We also show that the Neumann-Taylor variant does not have finite rank.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
43