Some key problems on finite semigroups

Some Key Problems on Finite Semigroups

Finite Semigroups: Jewels and Problems

The Ranks of Some Transformation Semigroups on a Finite Set

Some Results on Semigroups

In this note we state some results concerning the perturbation problem of strongly continuous semigroups on a Banach space X and provide some new characterizations of the uniformly continuous semigroups on X.

On Some Complexity Problems in Finite Algebras

Dedicated to my wife, Regina, with my everlasting love. ii ACKNOWLEDGMENTS I would like to express my gratitude to a number of people without whose support this thesis would not have been possible. I could not possibly mention all of them. First and foremost I would like to thank my advisor, Professor Ralph McKenzie. I would like to thank him for all the seminars I had the privilege to attend, ...