Some conferences and workshops I am organizing:

March 22-26, 2022, Recent developments in representation theory and mathematical physics, MF Oberwolfach Mini Workshop (with T. Heidersdorf and C. Stroppel)

April 2020- (ongoing) online Western Hemisphere Colloquium on Geometry and Physics (with Ron Donagi, Dan Freed, Sheldon Katz, David Morrison, Andrew Neitzke)

June 8-19, 2020   QFT for Mathematicians 2020, Perimeter Institute (with Kevin Costello, Davide Gaiotto, Ben Webster, and Philsang Yoo) postponed to summer 2022

Past events:

February-April, 2021  Twisted QFT: informal online seminar (with Brian Williams), University of Edinburgh

May 10-15, 2020  Davis Spring School on Categorical Wall Crossing (with Roger Casals, Will Donovan, Harold Williams, and Philsang Yoo) cancelled/postponed

June 17-28, 2019  QFT for Mathematicians, Perimeter Institute (with Kevin Costello, Davide Gaiotto, Ben Webster, and Philsang Yoo)

June 3-7, 2019 New Developments in Quantum Topology, UC Berkeley (with Nathan Geer, Toshitake Kohno, and Kolya Reshetikhin)

April 15-19, 2019 Chiral Algebras for the 21st Century, UC Davis (with Philsang Yoo)

April 10-13, 2017, Physics and knot homologies, Newton Institute, Cambridge (with Jacob Rasmussen and Sergei Gukov)

December 12-16, 2016, Recent Developments in Fields, Strings, and Gravity, UC Davis QMAP opening conference (with Veronika Hubeny, Mukund Rangamani, and Jaroslav Trnka)

July 10-August 7, 2016, Boundaries and Defects in Quantum Field Theories, Aspen Center for Physics (with Dan Freed, Anton Kapustin, and Constantin Teleman)

April 7-10, 2016, Symplectic Duality and Gauge Theory, Perimeter Institute for Theoretical Physics (with Alexander Braverman, Kevin Costello, and Davide Gaiotto)