Geometric Representation Theory and Gauge Theory: Cetraro, Italy 2018

Description

This book offers a review of the vibrant areas of geometric representation theory and gauge theory, which are characterized by a merging of traditional techniques in representation theory with the use of powerful tools from algebraic geometry, and with strong inputs from physics. The notes are based on lectures delivered at the CIME school "Geometric Representation Theory and Gauge Theory" held in Cetraro, Italy, in June 2018. They comprise three contributions, due to Alexander Braverman and Michael Finkelberg, Andrei Negut, and Alexei Oblomkov, respectively. Braverman and Finkelberg’s notes review the mathematical theory of the Coulomb branch of 3D N=4 quantum gauge theories. The purpose of Negut’s notes is to study moduli spaces of sheaves on a surface, as well as Hecke correspondences between them. Oblomkov's notes concern matrix factorizations and knot homology. This book will appeal to both mathematicians and theoretical physicists and will be a source of inspiration for PhD students and researchers. Front Matter ....Pages i-ix Coulomb Branches of 3-Dimensional Gauge Theories and Related Structures (Alexander Braverman, Michael Finkelberg)....Pages 1-52 Moduli Spaces of Sheaves on Surfaces: Hecke Correspondences and Representation Theory (Andrei Neguţ)....Pages 53-81 Notes on Matrix Factorizations and Knot Homology (Alexei Oblomkov)....Pages 83-127 Back Matter ....Pages 129-130