About me:

I am an emeritus professor at the department of Mathematics, National University of Singapore

I obtained my B.A from Oxford University (1982) and PhD from University of California, Los Angeles (1988), under the supervision of Bill Goldman and John Millson.

From 1990 to 2026, I was at the National University of Singapore 

email: 

mattansp(a)nus.edu.sg or asptan(a)gmail.com

Mailing address:

Department of Mathematics, 

National University of Singapore

Block S17 10 Lower Kent Ridge Road Singapore 119076. 

Research Interests

My research interests are broadly in the areas of low dimensional topology, geometric structures, representation varieties, and dynamics of group actions.