English

Stable vector bundles on generalized Kummer varieties

Algebraic Geometry 2022-04-22 v2

Abstract

For an abelian surface AA, we explicitly construct two new families of stable vector bundles on the generalized Kummer variety Kn(A)K_n(A) for n2n\geqslant 2. The first is the family of tautological bundles associated to stable bundles on AA, and the second is the family of the "wrong-way" fibers of a universal family of stable bundles on the dual abelian surface A^\widehat{A} parametrized by Kn(A)K_n(A). Each family exhibits a smooth connected component in the moduli space of stable bundles on Kn(A)K_n(A), which is holomorphic symplectic but not simply connected, contrary to the case of K3 surfaces.

Keywords

Cite

@article{arxiv.2108.05339,
  title  = {Stable vector bundles on generalized Kummer varieties},
  author = {Fabian Reede and Ziyu Zhang},
  journal= {arXiv preprint arXiv:2108.05339},
  year   = {2022}
}

Comments

18 pages. Final version. Simplified and shortened some proofs after referee report. Comments welcome!

R2 v1 2026-06-24T05:02:20.515Z