Symplectic resolutions, symplectic duality, and Coulomb branches
Joel Kamnitzer
Abstract
Symplectic resolutions are an exciting new frontier of research in representation theory. One of the most fascinating aspects of this study is symplectic duality: the observation that these resolutions come in pairs with matching properties. The Coulomb branch construction allows us to produce and study many of these dual pairs. These notes survey much recent work in this area including quantization, categorification, and enumerative geometry. We particularly focus on ADE quiver varieties and affine Grassmannian slices.
Topics & Concepts
Symplectic geometryCategorificationMathematicsQuiverDuality (order theory)Pure mathematicsQuantum cohomologySymplectic representationSymplectomorphismAlgebra over a fieldMoment mapCohomologyEquivariant cohomologyAlgebraic structures and combinatorial modelsNonlinear Waves and SolitonsAdvanced Algebra and Geometry