English

Representation type of surfaces in $\mathbb{P}^3$

Algebraic Geometry 2018-07-26 v2 Representation Theory

Abstract

The goal of this article is to prove that every surface with a regular point in the three-dimensional projective space of degree at least four, is of wild representation type under the condition that either XX is integral or Pic(X)\OoX(1)\mathrm{Pic}(X) \cong \langle \Oo_X(1) \rangle; we construct families of arbitrarily large dimension of indecomposable pairwise non-isomorphic aCM vector bundles. On the other hand, we prove that every non-integral aCM scheme of arbitrary dimension at least two, is also very wild in a sense that there exist arbitrarily large dimensional families of pairwise non-isomorphic aCM non-locally free sheaves of rank one.

Keywords

Cite

@article{arxiv.1807.08916,
  title  = {Representation type of surfaces in $\mathbb{P}^3$},
  author = {Edoardo Ballico and Sukmoon Huh},
  journal= {arXiv preprint arXiv:1807.08916},
  year   = {2018}
}

Comments

15 pages; Comments welcome

R2 v1 2026-06-23T03:11:56.057Z