Reader in Pure Mathematics
School of Mathematics, University of Manchester
I am a mathematician and computer scientist, interested in semigroup theory, tropical algebra and geometry, combinatorial and geometric group theory, formal languages and automata, cryptography, computational complexity, parallel processing, quantum computing, and especially the interactions between these fields.
I am the central coordinator for the North British Semigroups and Applications Network (NBSAN), and an editor of the journal Communications in Algebra. The rest of the time I am a father (of three), husband, rambler, fellwalker, consumer, commuter, cyclist, motorist, genealogist, cross-country skier and crossword enthusiast.
- A new research preprint, Convexity of tropical polytopes (joint with Marianne Johnson), is available here.
- The nineteenth NBSAN meeting will be held in York on 14th January 2015.
- A slightly less new research preprint, A large class of sofic monoids, is available here.
- An even less new research preprint, A strong geometric hyperbolicity property for directed graphs and monoids (joint with Robert Gray), is available here.