English

Mutating Species with Potentials and Cluster Tilting Objects

Representation Theory 2026-04-16 v2

Abstract

Buan, Iyama, Reiten and Smith proved that cluster-tilting objects in triangulated 2-Calabi--Yau categories are closely connected with mutation of quivers with potentials over an algebraically closed field. We prove a more general statement where instead of working with quivers with potentials we consider species with potential over a perfect field. We describe the 33-preprojective algebra of the tensor product of two tensor algebras of acyclic species using a species with potential. In the case when the Jacobian algebra of a species with potential is self-injective, we provide a description of the Nakayama automorphism of a particular case of mutation of the species with potential where you mutate along orbits of the Nakayama permutation, which preserves self-injectivity. For certain types of Jacobian algebras of species with potentials, we prove that they lie in the scope of the derived Auslander-Iyama correspondence due to Jasso-Muro. Mutating along orbits of the Nakayama permutation stays within this setting, yielding a rich source of examples. All 22-representation finite ll-homogeneous algebras that are constructed using certain species with potential and mutations of such species with potentials are considered.

Keywords

Cite

@article{arxiv.2509.24707,
  title  = {Mutating Species with Potentials and Cluster Tilting Objects},
  author = {Christoffer Söderberg},
  journal= {arXiv preprint arXiv:2509.24707},
  year   = {2026}
}

Comments

53 pages

R2 v1 2026-07-01T06:04:25.199Z