Twisted restricted conformal blocks of vertex operator algebras II: twisted restricted conformal blocks on totally ramified orbicurves

Fuente: arXiv
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Hauptverfasser: Gao, Xu, Liu, Jianqi, Zhu, Yiyi
Format: Preprint
Veröffentlicht: 2024
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author Gao, Xu
Liu, Jianqi
Zhu, Yiyi
author_facet Gao, Xu
Liu, Jianqi
Zhu, Yiyi
contents In this paper, we introduce a notion of twisted restricted conformal blocks on totally ramified orbicurves and establish an isomorphism between the space of twisted restricted conformal blocks and the space of twisted conformal blocks. The relationships among twisted (restricted) conformal blocks, $g$-twisted (restricted) correlation functions, and twisted intertwining operators are explored. Furthermore, by introducing a geometric generalization of Zhu's algebra and its modules, we obtain a description of the space of coinvariants by modules over associative algebras and show it is finite-dimensional under some conditions. In particular, a more conceptual proof of the $g$-twisted fusion rules theorem in vertex operator algebra theory is provided.
format Preprint
id arxiv_https___arxiv_org_abs_2403_00545
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Twisted restricted conformal blocks of vertex operator algebras II: twisted restricted conformal blocks on totally ramified orbicurves
Gao, Xu
Liu, Jianqi
Zhu, Yiyi
Algebraic Geometry
Mathematical Physics
Quantum Algebra
17B69, 81T40, 14H30
In this paper, we introduce a notion of twisted restricted conformal blocks on totally ramified orbicurves and establish an isomorphism between the space of twisted restricted conformal blocks and the space of twisted conformal blocks. The relationships among twisted (restricted) conformal blocks, $g$-twisted (restricted) correlation functions, and twisted intertwining operators are explored. Furthermore, by introducing a geometric generalization of Zhu's algebra and its modules, we obtain a description of the space of coinvariants by modules over associative algebras and show it is finite-dimensional under some conditions. In particular, a more conceptual proof of the $g$-twisted fusion rules theorem in vertex operator algebra theory is provided.
title Twisted restricted conformal blocks of vertex operator algebras II: twisted restricted conformal blocks on totally ramified orbicurves
topic Algebraic Geometry
Mathematical Physics
Quantum Algebra
17B69, 81T40, 14H30
url https://arxiv.org/abs/2403.00545