English

A combinatorial procedure for tilting mutation

Representation Theory 2021-12-22 v2

Abstract

Tilting mutation is a way of producing new tilting complexes from old ones replacing only one indecomposable summand. In this paper, we give a purely combinatorial procedure for performing tilting mutation of suitable algebras. As an application, we recreate a result due to Ladkani, which states that the path algebra of a quiver shaped like a line (with certain relations) is derived equivalent to the path algebra of a quiver shaped like a rectangle. We will do this by producing an explicit series of tilting mutations going between the two algebras.

Keywords

Cite

@article{arxiv.2112.08129,
  title  = {A combinatorial procedure for tilting mutation},
  author = {Didrik Fosse},
  journal= {arXiv preprint arXiv:2112.08129},
  year   = {2021}
}

Comments

30 pages, v2 corrected some typos

R2 v1 2026-06-24T08:18:27.914Z