Module Categories of the Generic Virasoro VOA and Quantum Groups

In this paper, we prove the equivalence between two ribbon tensor categories. On the one hand, we consider the category of modules of the Virasoro vertex operator algebra with generic central charge (generic Virasoro VOA) generated by those simple modules lying in the first row of the Kac table. On...

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Опубліковано в: :Symmetry, Integrability and Geometry: Methods and Applications
Дата:2025
Автор: Koshida, Shinji
Формат: Стаття
Мова:Англійська
Опубліковано: Інститут математики НАН України 2025
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/213197
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Module Categories of the Generic Virasoro VOA and Quantum Groups. Shinji Koshida. SIGMA 21 (2025), 039, 26 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Koshida, Shinji
author_facet Koshida, Shinji
citation_txt Module Categories of the Generic Virasoro VOA and Quantum Groups. Shinji Koshida. SIGMA 21 (2025), 039, 26 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description In this paper, we prove the equivalence between two ribbon tensor categories. On the one hand, we consider the category of modules of the Virasoro vertex operator algebra with generic central charge (generic Virasoro VOA) generated by those simple modules lying in the first row of the Kac table. On the other hand, we take the category of finite-dimensional type I modules of the quantum group (₂) with determined by the central charge. This is a continuation of our previous work in which we examined intertwining operators for the generic Virasoro VOA in detail. Our strategy to show the categorical equivalence is to take those results as input and directly compare the structures of tensor categories. Therefore, we are to execute the most elementary proof of categorical equivalence. We also study the category of ₁-cofinite modules of the generic Virasoro VOA. We show that it is ribbon equivalent to the category of finite-dimensional type I modules of (₂) ⊗ ~(₂), where and ~ are again related to the central charge.
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spelling Koshida, Shinji
2026-02-16T16:38:29Z
2025
Module Categories of the Generic Virasoro VOA and Quantum Groups. Shinji Koshida. SIGMA 21 (2025), 039, 26 pages
1815-0659
2020 Mathematics Subject Classification: 17B69; 17B68; 18M15
arXiv:2207.12969
https://nasplib.isofts.kiev.ua/handle/123456789/213197
https://doi.org/10.3842/SIGMA.2025.039
In this paper, we prove the equivalence between two ribbon tensor categories. On the one hand, we consider the category of modules of the Virasoro vertex operator algebra with generic central charge (generic Virasoro VOA) generated by those simple modules lying in the first row of the Kac table. On the other hand, we take the category of finite-dimensional type I modules of the quantum group (₂) with determined by the central charge. This is a continuation of our previous work in which we examined intertwining operators for the generic Virasoro VOA in detail. Our strategy to show the categorical equivalence is to take those results as input and directly compare the structures of tensor categories. Therefore, we are to execute the most elementary proof of categorical equivalence. We also study the category of ₁-cofinite modules of the generic Virasoro VOA. We show that it is ribbon equivalent to the category of finite-dimensional type I modules of (₂) ⊗ ~(₂), where and ~ are again related to the central charge.
The author is grateful to Kalle Kytölä, Eveliina Peltola, and Ingo Runkel for fruitful discussions. The author also thanks the anonymous referees for their various suggestions for improvement. This work was supported by the Academy of Finland (No. 248 130).
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Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Module Categories of the Generic Virasoro VOA and Quantum Groups
Article
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spellingShingle Module Categories of the Generic Virasoro VOA and Quantum Groups
Koshida, Shinji
title Module Categories of the Generic Virasoro VOA and Quantum Groups
title_full Module Categories of the Generic Virasoro VOA and Quantum Groups
title_fullStr Module Categories of the Generic Virasoro VOA and Quantum Groups
title_full_unstemmed Module Categories of the Generic Virasoro VOA and Quantum Groups
title_short Module Categories of the Generic Virasoro VOA and Quantum Groups
title_sort module categories of the generic virasoro voa and quantum groups
url https://nasplib.isofts.kiev.ua/handle/123456789/213197
work_keys_str_mv AT koshidashinji modulecategoriesofthegenericvirasorovoaandquantumgroups