English

$(P,\phi)$-Tamari lattices

Combinatorics 2025-10-08 v1

Abstract

Given any poset PP and chain ϕ\phi in PP, we define the (P,ϕ)(P,\phi)-Tamari lattice. We study in depth these lattices and prove in particular that they are join-semidistributive, join-congruence uniform and left modular. We prove that the lattices of higher torsion classes of the higher Auslander and Nakayama algebras of type A\mathbb{A} are examples of (P,ϕ)(P,\phi)-Tamari lattices and thus they inherit their properties. We also give general results related to left modular, extremal and congruence normal lattices.

Keywords

Cite

@article{arxiv.2510.06088,
  title  = {$(P,\phi)$-Tamari lattices},
  author = {Adrien Segovia},
  journal= {arXiv preprint arXiv:2510.06088},
  year   = {2025}
}

Comments

This paper is an extended abstract of 12 pages that was accepted for FPSAC 2025

R2 v1 2026-07-01T06:21:48.870Z