English

Torelli theorem for the moduli space of framed bundles

Algebraic Geometry 2015-05-13 v1

Abstract

Let X be an irreducible smooth complex projective curve of genus g>2, and let x be a fixed point. A framed bundle is a pair (E,\phi), where E is a vector bundle over X, of rank r and degree d, and \phi:E_x\to C^r is a non-zero homomorphism. There is a notion of (semi)stability for framed bundles depending on a parameter \tau>0, which gives rise to the moduli space of \tau-semistable framed bundles M^\tau. We prove a Torelli theorem for M^\tau, for \tau>0 small enough, meaning, the isomorphism class of the one-pointed curve (X,x), and also the integer r, are uniquely determined by the isomorphism class of the variety M^\tau.

Keywords

Cite

@article{arxiv.0808.1996,
  title  = {Torelli theorem for the moduli space of framed bundles},
  author = {Indranil Biswas and Tomas L. Gomez and Vicente Muñoz},
  journal= {arXiv preprint arXiv:0808.1996},
  year   = {2015}
}

Comments

12 pages

R2 v1 2026-06-21T11:10:22.386Z