Geometric perspectives in mathematical quantum field theory April 8 to April 12, 2013 American Institute of Mathematics, Palo Alto, CA Organizers: Ambar Sengupta and Jonathan Weitsman Description: This workshop, sponsored by AIM and the NSF, will be devoted to mathematical challenges in quantum field theory. Deadline: January 8, 2013 Details: http://www.aimath.org/ARCC/workshops/geometricqft.html