English

An analogue of Dubrovin's conjecture

Algebraic Geometry 2021-01-18 v2

Abstract

We propose an analogue of Dubrovin's conjecture for the case where Fano manifolds have quantum connections of exponential type. It includes the case where the quantum cohomology rings are not necessarily semisimple. The conjecture is described as an isomorphism of two linear algebraic structures, which we call "mutation systems". Given such a Fano manifold XX, one of the structures is given by the Stokes structure of the quantum connection of XX, and the other is given by a semiorthogonal decomposition of the derived category of coherent sheaves on XX. We also prove the conjecture for a class of smooth Fano complete intersections in a projective space.

Keywords

Cite

@article{arxiv.1705.05989,
  title  = {An analogue of Dubrovin's conjecture},
  author = {Fumihiko Sanda and Yota Shamoto},
  journal= {arXiv preprint arXiv:1705.05989},
  year   = {2021}
}

Comments

42 pages. To appear at Annales de l'Institut Fourier