Narrow quantum D-modules and quantum Serre duality
Algebraic Geometry
2020-10-27 v3
Abstract
Given Y a non-compact manifold or orbifold, we define a natural subspace of the cohomology of Y called the narrow cohomology. We show that despite Y being non-compact, there is a well-defined and non-degenerate pairing on this subspace. The narrow cohomology proves useful for the study of genus zero Gromov-Witten theory. When Y is a smooth complex variety or Deligne-Mumford stack, one can define a quantum D-module on the narrow cohomology of Y. This yields a new formulation of quantum Serre duality.
Cite
@article{arxiv.1811.01888,
title = {Narrow quantum D-modules and quantum Serre duality},
author = {Mark Shoemaker},
journal= {arXiv preprint arXiv:1811.01888},
year = {2020}
}
Comments
Final version. To appear in Ann. Inst. Fourier