English

A new 5-fold flop and derived equivalence

Algebraic Geometry 2017-05-04 v2

Abstract

We describe a new example of a flop in 5-dimensions, due to Roland Abuaf, with the nice feature that the contracting loci on either side are not isomorphic. We prove that the two sides are derived equivalent.

Cite

@article{arxiv.1506.06999,
  title  = {A new 5-fold flop and derived equivalence},
  author = {Ed Segal},
  journal= {arXiv preprint arXiv:1506.06999},
  year   = {2017}
}

Comments

v1. It may well be that this example has appeared before - references welcome! v2. Minor changes. Final version, to appear in Bull. London Math. Soc

R2 v1 2026-06-22T09:58:37.011Z