Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras

Let Σg,n be a compact oriented surface of genus g with n open disks removed. The algebra Lg,n(H) was introduced by Alekseev-Grosse-Schomerus and Buffenoir-Roche and is a combinatorial quantization of the moduli space of flat connections on Σg,n. Here we focus on the two building blocks L₀,₁(H) and L...

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Опубліковано в: :Symmetry, Integrability and Geometry: Methods and Applications
Дата:2019
Автор: Faitg, M.
Формат: Стаття
Мова:Англійська
Опубліковано: Інститут математики НАН України 2019
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/210311
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras / M. Faitg // Symmetry, Integrability and Geometry: Methods and Applications. — 2019. — Т. 15. — Бібліогр.: 39 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author_facet Faitg, M.
citation_txt Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras / M. Faitg // Symmetry, Integrability and Geometry: Methods and Applications. — 2019. — Т. 15. — Бібліогр.: 39 назв. — англ.
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description Let Σg,n be a compact oriented surface of genus g with n open disks removed. The algebra Lg,n(H) was introduced by Alekseev-Grosse-Schomerus and Buffenoir-Roche and is a combinatorial quantization of the moduli space of flat connections on Σg,n. Here we focus on the two building blocks L₀,₁(H) and L₁,₀(H) under the assumption that the gauge Hopf algebra H is finite-dimensional, factorizable, and ribbon, but not necessarily semisimple. We construct a projective representation of SL₂(Z), the mapping class group of the torus, based on L₁,₀(H), and we study it explicitly for H = Ūq(sl(2)). We also show that it is equivalent to the representation constructed by Lyubashenko and Majid.
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publisher Інститут математики НАН України
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spelling Faitg, M.
2025-12-05T09:32:54Z
2019
Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras / M. Faitg // Symmetry, Integrability and Geometry: Methods and Applications. — 2019. — Т. 15. — Бібліогр.: 39 назв. — англ.
1815-0659
2010 Mathematics Subject Classification: 16T05; 81R05
arXiv: 1805.00924
https://nasplib.isofts.kiev.ua/handle/123456789/210311
https://doi.org/10.3842/SIGMA.2019.077
Let Σg,n be a compact oriented surface of genus g with n open disks removed. The algebra Lg,n(H) was introduced by Alekseev-Grosse-Schomerus and Buffenoir-Roche and is a combinatorial quantization of the moduli space of flat connections on Σg,n. Here we focus on the two building blocks L₀,₁(H) and L₁,₀(H) under the assumption that the gauge Hopf algebra H is finite-dimensional, factorizable, and ribbon, but not necessarily semisimple. We construct a projective representation of SL₂(Z), the mapping class group of the torus, based on L₁,₀(H), and we study it explicitly for H = Ūq(sl(2)). We also show that it is equivalent to the representation constructed by Lyubashenko and Majid.
I am grateful to my advisors, Stéphane Baseilhac and Philippe Roche, for their regular support and their useful remarks. I thank the referees for carefully reading the manuscript and for many valuable comments, which improved the paper.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
Article
published earlier
spellingShingle Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
Faitg, M.
title Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
title_full Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
title_fullStr Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
title_full_unstemmed Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
title_short Modular Group Representations in Combinatorial Quantization with Non-Semisimple Hopf Algebras
title_sort modular group representations in combinatorial quantization with non-semisimple hopf algebras
url https://nasplib.isofts.kiev.ua/handle/123456789/210311
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