English

Fourier-Mukai transforms and stable sheaves on Weierstrass elliptic surfaces

Algebraic Geometry 2021-02-12 v2

Abstract

On a Weierstra{\ss} elliptic surface XX, we define a `limit' of Bridgeland stability conditions, denoted as ZlZ^l-stability, by moving the polarisation towards the fiber direction in the ample cone while keeping the volume of the polarisation fixed. We describe conditions under which a slope stable torsion-free sheaf is taken by a Fourier-Mukai transform to a ZlZ^l-stable object, and describe a modification upon which a ZlZ^l-semistable object is taken by the inverse Fourier-Mukai transform to a slope semistable torsion-free sheaf. We also study wall-crossing for Bridgeland stability, and show that 1-dimensional twisted Gieseker semistable sheaves are taken by a Fourier-Mukai transform to Bridgeland semistable objects.

Keywords

Cite

@article{arxiv.1910.02477,
  title  = {Fourier-Mukai transforms and stable sheaves on Weierstrass elliptic surfaces},
  author = {Wanmin Liu and Jason Lo and Cristian Martinez},
  journal= {arXiv preprint arXiv:1910.02477},
  year   = {2021}
}

Comments

45 pages. Exposition improved. This article significantly expands and supersedes arXiv:1710.04652. The notation and preliminaries also draw heavily from arXiv:1710.03771