English

Rigidity in higher representation theory

Representation Theory 2014-09-03 v1 Quantum Algebra

Abstract

We describe a categorical g action, called a (g,theta) action, which is easier to check in practice. Most categorical g actions can be shown to be of this form. The main result is that a (g,theta) action carries actions of quiver Hecke algebras (KLR algebras). We discuss applications of this fact to categorical vertex operators, affine Grassmannians (or Nakajima quiver varieties) and to homological knot invariants.

Keywords

Cite

@article{arxiv.1409.0827,
  title  = {Rigidity in higher representation theory},
  author = {Sabin Cautis},
  journal= {arXiv preprint arXiv:1409.0827},
  year   = {2014}
}

Comments

49 pages

R2 v1 2026-06-22T05:46:50.300Z