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welcome to my webpage, i am a pure mathematician working at the university of technology sydney

my research interests include geometric group theory, complexity theory, automata and formal language theory, enumerative combinatorics, pattern-avoiding permutations. click on the side links for more information.

i am a member of 
the algebraic cryptography center at stevens, and carma (computer assisted research mathematics and applications) at newcastle

i am running the australian algebra conference 01 at UTS Nov 27-29