I work in enumerative geometry, using equivariant and K-theoretic tools. I am interested in: moduli of sheaves, Donaldson--Thomas and Pandharipande--Thomas theory, Gromov-Witten theory, (Nakajima) quiver varieties, quantum groups, hall algebras, vertex algebras, wall-crossing, etc. Recently I have been studying PT vertices (e.g. topological vertex) and the DT/PT correspondence.

Outside of math, I like to swim and play Go.