English

Holomorphic Frobenius actions for DQ-modules

Algebraic Geometry 2019-07-12 v2

Abstract

Given a complex manifold endowed with a C×\mathbb{C}^\times-action and a DQ-algebra equipped with a compatible holomorphic Frobenius action (F-action), we prove that if the C×\mathbb{C}^\times-action is free and proper, then the category of F-equivariant DQ-modules is equivalent to the category of modules over the sheaf of invariant sections of the DQ-algebra. As an application, we deduce the codimension three conjecture for formal microdifferential modules from the one for DQ-modules on a symplectic manifold.

Keywords

Cite

@article{arxiv.1803.07923,
  title  = {Holomorphic Frobenius actions for DQ-modules},
  author = {Francois Petit},
  journal= {arXiv preprint arXiv:1803.07923},
  year   = {2019}
}

Comments

34 pages. Comments are welcome, minor changes, several typos corrected

R2 v1 2026-06-23T01:00:21.505Z