Ẑ and Splice Diagrams

We study quantum q-series invariants of 3-manifolds Ẑσ of Gukov-Pei-Putrov-Vafa, using techniques from the theory of normal surface singularities such as splice diagrams. We show that the (suitably normalized) sum of all Ẑσ depends only on the splice diagram, and in particular, it agrees for manifol...

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Опубліковано в: :Symmetry, Integrability and Geometry: Methods and Applications
Дата:2025
Автори: Gukov, Sergei, Katzarkov, Ludmil, Svoboda, Josef
Формат: Стаття
Мова:Англійська
Опубліковано: Інститут математики НАН України 2025
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/214173
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Ẑ and Splice Diagrams. Sergei Gukov, Ludmil Katzarkov and Josef Svoboda. SIGMA 21 (2025), 073, 30 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Gukov, Sergei
Katzarkov, Ludmil
Svoboda, Josef
author_facet Gukov, Sergei
Katzarkov, Ludmil
Svoboda, Josef
citation_txt Ẑ and Splice Diagrams. Sergei Gukov, Ludmil Katzarkov and Josef Svoboda. SIGMA 21 (2025), 073, 30 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We study quantum q-series invariants of 3-manifolds Ẑσ of Gukov-Pei-Putrov-Vafa, using techniques from the theory of normal surface singularities such as splice diagrams. We show that the (suitably normalized) sum of all Ẑσ depends only on the splice diagram, and in particular, it agrees for manifolds with the same universal abelian cover. We use these ideas to find simple formulas for Ẑσ invariants of Seifert manifolds. Applications include a better understanding of the vanishing of the q-series Ẑσ. Additionally, we study moduli spaces of flat SL₂(ℂ) connections on Seifert manifolds and their relation to spectra of surface singularities, extending a result of Boden and Curtis for Brieskorn spheres to Seifert rational homology spheres with 3 singular fibers and to Seifert homology spheres with any number of fibers.
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language English
last_indexed 2026-03-21T12:21:40Z
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spelling Gukov, Sergei
Katzarkov, Ludmil
Svoboda, Josef
2026-02-19T16:04:40Z
2025
Ẑ and Splice Diagrams. Sergei Gukov, Ludmil Katzarkov and Josef Svoboda. SIGMA 21 (2025), 073, 30 pages
1815-0659
2020 Mathematics Subject Classification: 57K31; 32S50; 32S25; 32S55
arXiv:2304.00699
https://nasplib.isofts.kiev.ua/handle/123456789/214173
https://doi.org/10.3842/SIGMA.2025.073
We study quantum q-series invariants of 3-manifolds Ẑσ of Gukov-Pei-Putrov-Vafa, using techniques from the theory of normal surface singularities such as splice diagrams. We show that the (suitably normalized) sum of all Ẑσ depends only on the splice diagram, and in particular, it agrees for manifolds with the same universal abelian cover. We use these ideas to find simple formulas for Ẑσ invariants of Seifert manifolds. Applications include a better understanding of the vanishing of the q-series Ẑσ. Additionally, we study moduli spaces of flat SL₂(ℂ) connections on Seifert manifolds and their relation to spectra of surface singularities, extending a result of Boden and Curtis for Brieskorn spheres to Seifert rational homology spheres with 3 singular fibers and to Seifert homology spheres with any number of fibers.
We would like to thank Denis Auroux, Martin Čech, Shimal Harichurn, Mrunmay Jagadale, Maxim Kontsevich, Slava Krushkal, András Némethi, Sunghyuk Park, Pavel Putrov, and Nikolai Saveliev for helpful conversations and Zuzana Urbanova for the help with computer experiments. We thank the anonymous referees for their valuable suggestions and comments. S. Gukov was partially supported by NSF grant DMS-1664227, DOE grant DE-SC0011632. S. Gukov and J. Svoboda were partially supported by the Simons Grant, New structures in low-dimensional topology. L. Katzarkov was supported by NSF Grant Theory of Atoms, Simons investigators grant HMF Simons Foundation, grant SFI-MPS-T-Institutes-00007697, and the Ministry of Education and Science of the Republic of Bulgaria, grant DO1-239/10.12.2024.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Ẑ and Splice Diagrams
Article
published earlier
spellingShingle Ẑ and Splice Diagrams
Gukov, Sergei
Katzarkov, Ludmil
Svoboda, Josef
title Ẑ and Splice Diagrams
title_full Ẑ and Splice Diagrams
title_fullStr Ẑ and Splice Diagrams
title_full_unstemmed Ẑ and Splice Diagrams
title_short Ẑ and Splice Diagrams
title_sort ẑ and splice diagrams
url https://nasplib.isofts.kiev.ua/handle/123456789/214173
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AT katzarkovludmil zandsplicediagrams
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