Representing Quantum Mechanics: ideas from Frobenius to Heisenberg and von Neumann, Colloquium at the University of Texas, Dallas,  April 29, 2016.

The Gaussian Radon Transform   at a Special Session of the American Mathematical   Meeting in Fullerton, CA,  October, 2015.

Representing the Heisenberg Group: ideas from Frobenius to von Neumann at a Special Session of the American Mathematical   Meeting in Fullerton, CA,  October, 2015.

Four chapters on low dimensional gauge theories  Thierry Lévy at the  Centre Interfacultaire Bernoulli, EPFL (Lausanne, Swizerland), April, 2015.

Representing the Heisenberg Group: a look back at von Neumann’s Uniqueness
Result, at the Mathematical Physics, Fourier analysis, and Applications Seminar, The Graduate Center, The City University of New York, March 27, 2015.

AMS sectional meeting in Albuquerque in April 2014:  in a session on mathematical finance  organized by Indranil Sengupta .

Jonathan Weitsman and I organized an AIM workshop on geometric perspectives in quantum field theory in April 2013.