English

Orthosymplectic Satake equivalence

Representation Theory 2022-10-31 v5 High Energy Physics - Theory Algebraic Geometry Quantum Algebra

Abstract

This is a companion paper of arXiv:1909.11492. We prove an equivalence relating representations of a degenerate orthosymplectic supergroup with the category of SO(N1,C[ ⁣[t] ⁣])SO(N-1,{\mathbb C}[\![t]\!])-equivariant perverse sheaves on the affine Grassmannian of SONSO_N. We explain how this equivalence fits into a more general framework of conjectures due to Gaiotto and to Ben-Zvi, Sakellaridis and Venkatesh.

Keywords

Cite

@article{arxiv.1912.01930,
  title  = {Orthosymplectic Satake equivalence},
  author = {Alexander Braverman and Michael Finkelberg and Roman Travkin},
  journal= {arXiv preprint arXiv:1912.01930},
  year   = {2022}
}

Comments

v2: 31 pages, a few minor corrections; Conjecture 3.3.4 became Theorem 3.3.5. v3: 32 pages, proof of Lemma 2.3.3 corrected. v4: minor corrections. v5: the final published version

R2 v1 2026-06-23T12:35:30.916Z