Professor Emeritus, University of Waterloo

Department of Pure Mathematics, Institute for Quantum Computing, University of Waterloo

Professor of Mathematics, University of California, Berkeley

Professor of Mathematics, Saarland University

Professor of Mathematics, University of Toronto

IIT Hyderabad

Emeritus Professor of Tohoku University

Dipartimento di Matematica, Università di Roma Tor Vergata

Professor Emeritus of Mathematics, University of Waterloo

Professor of Information Science, Nagoya University