English

Sheaf Quantization of Lagrangians and Floer cohomology

Symplectic Geometry 2019-01-29 v1

Abstract

Given an exact Lagrangian submanifold LL in TNT^*N, we want to construct a complex of sheaves in the derived category of sheaves on N×RN\times {\mathbb R} , such that its singular support, SS(FL)SS({\mathcal F}^\bullet_L), is equal to L^\widehat L, the cone constructed over LL. Its existence was stated in \cite{Viterbo-ISTST} in 2011, with a sketch of proof, which however contained a gap (fixed here by the rectification). A complete proof was shortly after provided by Guillermou (\cite{Guillermou}) by a completely different method, in particular Guillermou's method does not use Floer theory. The proof provided here is, as originally planned, based on Floer homology. Besides the construction of the complex of sheaves, we prove that the filtered versions of sheaf cohomology of the quantization and of Floer cohomology coincide, that is FH(N×],λ[,FL)FH(L;0N;λ)FH^*(N\times ]-\infty, \lambda [, {\mathcal F}^\bullet_L)\simeq FH^*(L;0_N;\lambda), and so do their product structures.

Keywords

Cite

@article{arxiv.1901.09440,
  title  = {Sheaf Quantization of Lagrangians and Floer cohomology},
  author = {Claude Viterbo},
  journal= {arXiv preprint arXiv:1901.09440},
  year   = {2019}
}