Research interests. Algebraic theory of automata and languages. In particular, connections with semigroup theory, combinatorics, logic and topology.
4 Find a first order sentence satisfied in every finite semigroup but not in every compact semigroup jan 27
4 Concrete category of topological spaces over preordered sets: what are the initial morphisms? apr 30
4 Rees matrix semigroup aug 7 '13
3 Constructing a recursive definition. mar 24