Senior lecturer at the department of Mathematics University of Auckland in new Zealand. Current research interests include applied algebra and combinatorics, as well as studying the math olympiads as an educational tool.
Fun math stuff, including computing pi, perfect numbers, Fibonacci numbers, the tesseract, a look into 4-dimensional space. Includes family photos and trivia information about the author.
Online texts include real variable functions, advanced calculus, dynamical systems, Lie algebras, geometric asymptotics and semiriemannian geometry. In PDF format.