Sigma models as Gross-Neveu models. II
arXiv:2310.15394 · doi:10.1134/S0040577923120048
Abstract
We summarize some (mostly geometric) facts underlying the relation between 2D integrable sigma models and generalized Gross-Neveu models, emphasizing connections to the theory of nilpotent orbits, Springer resolutions and quiver varieties. This is meant to shed light on the general setup when this correspondence holds.
17 pages, 1 figure