Highest-weight vectors and three-point functions in GKO coset decomposition
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866908382188797952 |
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| author | Bershtein, Mikhail Feigin, Boris Trufanov, Aleksandr |
| author_facet | Bershtein, Mikhail Feigin, Boris Trufanov, Aleksandr |
| contents | We revisit the classical Goddard-Kent-Olive coset construction. We find the formulas for the highest weight vectors in coset decomposition and calculate their norms. We also derive formulas for matrix elements of natural vertex operators between these vectors. This leads to relations on conformal blocks. Due to the AGT correspondence, these relations are equivalent to blowup relations on Nekrasov partition functions with the presence of the surface defect. These relations can be used to prove Kyiv formulas for the Painlevé tau-functions (following Nekrasov's method). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14350 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Highest-weight vectors and three-point functions in GKO coset decomposition Bershtein, Mikhail Feigin, Boris Trufanov, Aleksandr Quantum Algebra High Energy Physics - Theory Mathematical Physics Representation Theory We revisit the classical Goddard-Kent-Olive coset construction. We find the formulas for the highest weight vectors in coset decomposition and calculate their norms. We also derive formulas for matrix elements of natural vertex operators between these vectors. This leads to relations on conformal blocks. Due to the AGT correspondence, these relations are equivalent to blowup relations on Nekrasov partition functions with the presence of the surface defect. These relations can be used to prove Kyiv formulas for the Painlevé tau-functions (following Nekrasov's method). |
| title | Highest-weight vectors and three-point functions in GKO coset decomposition |
| topic | Quantum Algebra High Energy Physics - Theory Mathematical Physics Representation Theory |
| url | https://arxiv.org/abs/2404.14350 |