Problem Solving in Automata, Languages, and Complexity

Du is now, by Deed Poll, my legal name, since October 2002. End 2020, turned 70, all threescore-and-ten. Schizophrenic by professional qualification, free man by occupation, ordinary individual by better judgement, happy by orientation, philosopher by the hustle, poet by the score, arsefucker by default, Du by all indications. NOT so easily fooled by this little world, and its story, on the NOT-Du side of things, I write and self-publish, poetry, books for fun, for a hobby.