Connection between cut-and-join and Casimir operators

We study cut-and-join operators for spin Hurwitz partition functions. We provide explicit expressions for these operators in terms of derivatives in p-variables without straightforward matrix realization, which is yet to be found. With the help of these expressions spin cut-and-join operators can be...

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Main Authors: A. Mironov, A. Morozov, A. Zhabin
Format: Article
Language:English
Published: Elsevier 2021-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269321006080
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spelling doaj-62610d1c05f648bc87fe39dbc4ddde722021-09-29T04:22:48ZengElsevierPhysics Letters B0370-26932021-11-01822136668Connection between cut-and-join and Casimir operatorsA. Mironov0A. Morozov1A. Zhabin2Lebedev Physics Institute, Moscow 119991, Russia; Institute for Theoretical and Experimental Physics, Moscow 117218, Russia; Institute for Information Transmission Problems, Moscow 127994, Russia; Corresponding author.Moscow Institute of Physics and Technology, Dolgoprudny 141701, Russia; Institute for Theoretical and Experimental Physics, Moscow 117218, Russia; Institute for Information Transmission Problems, Moscow 127994, RussiaMoscow Institute of Physics and Technology, Dolgoprudny 141701, Russia; Institute for Theoretical and Experimental Physics, Moscow 117218, RussiaWe study cut-and-join operators for spin Hurwitz partition functions. We provide explicit expressions for these operators in terms of derivatives in p-variables without straightforward matrix realization, which is yet to be found. With the help of these expressions spin cut-and-join operators can be calculated directly and algorithmically. The reason why it is possible is the connection between mentioned operators and specially chosen Casimir operators that are easy to compute. An essential part of the connection involves shifted Q-Schur functions.http://www.sciencedirect.com/science/article/pii/S0370269321006080
collection DOAJ
language English
format Article
sources DOAJ
author A. Mironov
A. Morozov
A. Zhabin
spellingShingle A. Mironov
A. Morozov
A. Zhabin
Connection between cut-and-join and Casimir operators
Physics Letters B
author_facet A. Mironov
A. Morozov
A. Zhabin
author_sort A. Mironov
title Connection between cut-and-join and Casimir operators
title_short Connection between cut-and-join and Casimir operators
title_full Connection between cut-and-join and Casimir operators
title_fullStr Connection between cut-and-join and Casimir operators
title_full_unstemmed Connection between cut-and-join and Casimir operators
title_sort connection between cut-and-join and casimir operators
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2021-11-01
description We study cut-and-join operators for spin Hurwitz partition functions. We provide explicit expressions for these operators in terms of derivatives in p-variables without straightforward matrix realization, which is yet to be found. With the help of these expressions spin cut-and-join operators can be calculated directly and algorithmically. The reason why it is possible is the connection between mentioned operators and specially chosen Casimir operators that are easy to compute. An essential part of the connection involves shifted Q-Schur functions.
url http://www.sciencedirect.com/science/article/pii/S0370269321006080
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AT amorozov connectionbetweencutandjoinandcasimiroperators
AT azhabin connectionbetweencutandjoinandcasimiroperators
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