A restricted model for the bounded derived category of gentle algebras

We present a restricted model for the bounded derived category of gentle algebras that encodes the indecomposable objects and positive extensions between them. The model is then used to count the number of d -term silting objects for linearly oriented A n , recovering the result that they are counted by the Pfaff-Fuss-Catalan numbers.

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Publication Details

Journal
Journal of Algebra
Published
2025-09-05
DOI
https://doi.org/10.1016/j.jalgebra.2025.08.018
Primary Topic
Algebraic structures and combinatorial models
Type
article
Field-Weighted Citation Impact
0.00

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article

A restricted model for the bounded derived category of gentle algebras

Esha Gupta
Journal of Algebra
Algebraic structures and combinatorial models
article

A restricted model for the bounded derived category of gentle algebras

Esha Gupta
article en

Abstract

We present a restricted model for the bounded derived category of gentle algebras that encodes the indecomposable objects and positive extensions between them. The model is then used to count the number of d -term silting objects for linearly oriented A n , recovering the result that they are counted by the Pfaff-Fuss-Catalan numbers.

Journal of AlgebraVol. 686
Centre National de la Recherche Scientifique (FR), Université de Versailles Saint-Quentin-en-Yvelines (FR), Université Paris-Saclay (FR), Laboratoire de Mathématiques Blaise Pascal (FR), Laboratoire de Mathématiques de Versailles (FR)
Fondation Mathématique Jacques Hadamard
Openalex Percentile: Top 70%
Algebraic structures and combinatorial models
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