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1. Verfasser: Murakami, Reiji
Format: Preprint
Veröffentlicht: 2024
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Online-Zugang:https://arxiv.org/abs/2403.19106
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author Murakami, Reiji
author_facet Murakami, Reiji
contents Kobayashi-Pevzner discovered in [Selecta Math., 2016] that the failure of the multiplicity-one property in the fusion rule of Verma modules of sl2 occurs exactly when the Rankin-Cohen bracket vanishes, and 1classified all the corresponding parameters. In this paper we provide yet another characterization for these parameters, and give a precise description of indecomposable components of the tensor product. Furthermore, we discuss when the tensor products of two Verma modules are isomorphic to each other for semisimple Lie algebras g.
format Preprint
id arxiv_https___arxiv_org_abs_2403_19106
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Branching problem of tensoring two Verma modules and its application to differential symmetry breaking operators
Murakami, Reiji
Representation Theory
Kobayashi-Pevzner discovered in [Selecta Math., 2016] that the failure of the multiplicity-one property in the fusion rule of Verma modules of sl2 occurs exactly when the Rankin-Cohen bracket vanishes, and 1classified all the corresponding parameters. In this paper we provide yet another characterization for these parameters, and give a precise description of indecomposable components of the tensor product. Furthermore, we discuss when the tensor products of two Verma modules are isomorphic to each other for semisimple Lie algebras g.
title Branching problem of tensoring two Verma modules and its application to differential symmetry breaking operators
topic Representation Theory
url https://arxiv.org/abs/2403.19106