Although there are some books dealing with algebraic theory of automata, their contents consist mainly of Krohn-Rhodes theory and related topics. The topics in the present book are rather different. For example, automorphism groups of automata and the partially ordered sets of automata are systemati[...]

This Insight Flexi Map is the essential resource for your trip. Informative and easy to use; it contains digitally generated, detailed and clear cartography, with a comprehensive index. It also features up to 30 illustrated recommendations of the top sights that are cross-referenced to the map, to h[...]

A word is said to be primitive if it cannot be represented as any power of another word. It is a well-known conjecture that the set of all primitive words Q over a non-trivial alphabet is not context-free: this conjecture is still open. In this book, the authors deal with properties of primitive wor[...]