1987

Implicit Operations on Certain Classes of Semigroups

Semigroups and their Applications | 1987 | incollection

A Azevedo

1986

Minimal Non-permutative Pseudovarieties of Semigroups .1.

Pacific Journal of Mathematics | 1986 | article
1986

Minimal Non-permutative Pseudovarieties of Semigroups .2.

Pacific Journal of Mathematics | 1986 | article
1986

Minimal non-permutative pseudovarieties of semigroups. I

Pacific Journal of Mathematics | 1986 | article
1986

Minimal non-permutative pseudovarieties of semigroups. II

Pacific Journal of Mathematics | 1986 | article
1986

Power Pseudovarieties of Semigroups-i

Semigroup Forum | 1986 | article
1986

Power Pseudovarieties of Semigroups-ii

Semigroup Forum | 1986 | article
1986

Some Order Properties of the Lattice of Varieties of Commutative Semigroups

Canadian Journal of Mathematics-journal Canadien De Mathematiques | 1986 | article
1985

Minimal Non-permutative Pseudovarieties of Semigroups .3.

Algebra Universalis | 1985 | article
1985

Some Quasi-ordered Classes of Finite Commutative Semigroups

Semigroup Forum | 1985 | article
1984

Generalized varieties of commutative and nilpotent semigroups

Semigroup Forum | 1984 | article

NR Reilly

1984

Some Algorithms on the Star Operation Applied To Finite Languages

Semigroup Forum | 1984 | article
1983

Overlapping of Words in Rational Languages

Combinatorics on Words | 1983 | incollection