BSc Hons Monash 1970, PhD University of California, Berkeley 1974
Professor of Mathematics, University of Melbourne since 1982.
Head Department of Mathematics, 1989-1992 and Head, Mathematics and Statistics Department 2002-2004. President Australian Mathematical Society 1990-1992 and Chair, National Committee for the Mathematical Sciences 2005-2010
Research interests in low dimensional geometry and topology, shortest networks with applications to the design of underground mine access and machine learning.