Invariant Functions On Cluster Ensembles

Fuente: arXiv
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Autore principale: Kaufman, Dani
Natura: Preprint
Pubblicazione: 2020
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author Kaufman, Dani
author_facet Kaufman, Dani
contents We define the notion of an invariant function on a cluster ensemble with respect to an action of the cluster modular group on its associated function fields. We realize many examples of previously studied functions as elements of this type of invariant ring and give many new examples. We show that these invariants have geometric and number theoretic interpretations, and classify them for ensembles associated to affine Dynkin diagrams.
format Preprint
id arxiv_https___arxiv_org_abs_2010_15179
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle Invariant Functions On Cluster Ensembles
Kaufman, Dani
Commutative Algebra
Representation Theory
13F60 (Primary) 30F60 (Secondary)
We define the notion of an invariant function on a cluster ensemble with respect to an action of the cluster modular group on its associated function fields. We realize many examples of previously studied functions as elements of this type of invariant ring and give many new examples. We show that these invariants have geometric and number theoretic interpretations, and classify them for ensembles associated to affine Dynkin diagrams.
title Invariant Functions On Cluster Ensembles
topic Commutative Algebra
Representation Theory
13F60 (Primary) 30F60 (Secondary)
url https://arxiv.org/abs/2010.15179