The pseudovariety of semigroups
of triangular matrices over a finite field
Jorge Almeida1, Stuart W. Margolis2 and Mikhail V. Volkov3
Departamento de Matemática Pura,
Faculdade de Ciências, Universidade do Porto, 4169-007 Porto,
Department of Mathematics,
Bar Ilan University, 52900 Ramat Gan, Israel; email@example.com
Department of Mathematics and Mechanics,
Ural State University, 620083 Ekaterinburg, Russia; Mikhail.Volkov@usu.ru
We show that semigroups representable by triangular matrices over a fixed finite field
form a decidable pseudovariety and provide a finite pseudoidentity basis for it.
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