English

Perverse coherent t-structures through torsion theories

Representation Theory 2013-08-08 v4 Category Theory

Abstract

Bezrukavnikov (later together with Arinkin) recovered the work of Deligne defining perverse tt-structures for the derived category of coherent sheaves on a projective variety. In this text we prove that these tt-structures can be obtained through tilting torsion theories as in the work of Happel, Reiten and Smal\o. This approach proves to be slightly more general as it allows us to define, in the quasi-coherent setting, similar perverse tt-structures for certain noncommutative projective planes.

Keywords

Cite

@article{arxiv.0911.0343,
  title  = {Perverse coherent t-structures through torsion theories},
  author = {Jorge Vitoria},
  journal= {arXiv preprint arXiv:0911.0343},
  year   = {2013}
}

Comments

New revised version with important corrections

R2 v1 2026-06-21T14:06:21.781Z