English

Invariants for isomorphism classes in the category $\bcalNT$

Commutative Algebra 2025-12-09 v2 Representation Theory

Abstract

The category \bcalNT\bcalNT is a category of certain commutative graded algebras over a field. It was introduced in \cite{Lobos2} as a generalization of algebras generated by Jucys-Murphy elements in the many \textbf{End} algebras of the diagrammatic Soergel category of Elias and Williamson. In the first part of this article we define certain \emph{Invariants} for the isomorphism classes in \bcalNT,\bcalNT, following in the same spirit of \cite{Lobos3}, where a series of \emph{Isomorphism criteria} were found. At the end, we use our invariants to provide a new lower bound for the number of isomorphism classes, improving a similar result obtained in \cite{Lobos3}.

Keywords

Cite

@article{arxiv.2508.00084,
  title  = {Invariants for isomorphism classes in the category $\bcalNT$},
  author = {Diego Lobos Maturana},
  journal= {arXiv preprint arXiv:2508.00084},
  year   = {2025}
}

Comments

40 pages, V2

R2 v1 2026-07-01T04:28:27.431Z