On the Number of Exceptional Pairs Over a Class of Nakayama Algebras

Fuente: arXiv
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Main Authors: Espinosa, Pedro Fernando Fernández, Reynoso-Mercado, David
Format: Preprint
Published: 2025
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author Espinosa, Pedro Fernando Fernández
Reynoso-Mercado, David
author_facet Espinosa, Pedro Fernando Fernández
Reynoso-Mercado, David
contents In this paper some combinatorial and homological tools are used to describe and give an explicit formula for the number of exceptional pairs (exceptional sequences of length two) for some classes of Nakayama Algebras and for the Auslander algebra of a radical square zero algebra of type $\mathbb{A}_n$. In addition, we explore how the number of exceptional pairs can be connected with some integer sequences in the OEIS (The On-line Encyclopedia of Integer Sequences).
format Preprint
id arxiv_https___arxiv_org_abs_2510_21056
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the Number of Exceptional Pairs Over a Class of Nakayama Algebras
Espinosa, Pedro Fernando Fernández
Reynoso-Mercado, David
Combinatorics
Representation Theory
16G20, 16G70, 05A17, 16E05
In this paper some combinatorial and homological tools are used to describe and give an explicit formula for the number of exceptional pairs (exceptional sequences of length two) for some classes of Nakayama Algebras and for the Auslander algebra of a radical square zero algebra of type $\mathbb{A}_n$. In addition, we explore how the number of exceptional pairs can be connected with some integer sequences in the OEIS (The On-line Encyclopedia of Integer Sequences).
title On the Number of Exceptional Pairs Over a Class of Nakayama Algebras
topic Combinatorics
Representation Theory
16G20, 16G70, 05A17, 16E05
url https://arxiv.org/abs/2510.21056