Complex Matching Distance and Stability for Minimal Projective Resolutions, with Applications to Persistence

Fuente: arXiv
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Autori principali: Asashiba, Hideto, Patel, Amit K.
Natura: Preprint
Pubblicazione: 2026
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author Asashiba, Hideto
Patel, Amit K.
author_facet Asashiba, Hideto
Patel, Amit K.
contents We develop a stability theory for minimal projective resolutions of $\mathbf{P}$-modules, where $\mathbf{P}$ is a finite metric poset. We use the Gülen-McCleary distance on $\mathbf{P}$-modules together with a new complex matching distance on bounded complexes of finitely generated projective $\mathbf{P}$-modules. The latter yields an extended metric on homotopy classes of such complexes and restricts to minimal projective resolutions. Our main theorem shows that this induced distance on minimal projective resolutions is bounded above by the Gülen-McCleary distance. As an application, we pass to the interval poset and kernel construction, interpreting persistence diagrams as minimal projective resolutions of kernel modules. This gives a corresponding stability inequality, which in the one-parameter case recovers classical bottleneck stability and in the multiparameter case extends to signed diagrams arising from minimal projective resolutions.
format Preprint
id arxiv_https___arxiv_org_abs_2602_15726
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Complex Matching Distance and Stability for Minimal Projective Resolutions, with Applications to Persistence
Asashiba, Hideto
Patel, Amit K.
Representation Theory
Algebraic Topology
Category Theory
16G20, 18G10, 55N31, 62R40
We develop a stability theory for minimal projective resolutions of $\mathbf{P}$-modules, where $\mathbf{P}$ is a finite metric poset. We use the Gülen-McCleary distance on $\mathbf{P}$-modules together with a new complex matching distance on bounded complexes of finitely generated projective $\mathbf{P}$-modules. The latter yields an extended metric on homotopy classes of such complexes and restricts to minimal projective resolutions. Our main theorem shows that this induced distance on minimal projective resolutions is bounded above by the Gülen-McCleary distance. As an application, we pass to the interval poset and kernel construction, interpreting persistence diagrams as minimal projective resolutions of kernel modules. This gives a corresponding stability inequality, which in the one-parameter case recovers classical bottleneck stability and in the multiparameter case extends to signed diagrams arising from minimal projective resolutions.
title Complex Matching Distance and Stability for Minimal Projective Resolutions, with Applications to Persistence
topic Representation Theory
Algebraic Topology
Category Theory
16G20, 18G10, 55N31, 62R40
url https://arxiv.org/abs/2602.15726