Some New Modular Rank Three Nahm Sums from a Lift-Dual Operation
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866915073365114880 |
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| author | Cao, Zhineng Wang, Liuquan |
| author_facet | Cao, Zhineng Wang, Liuquan |
| contents | Around 2007, Zagier discovered some rank two and rank three Nahm sums, and their modularity have now all been confirmed. Zagier also observed that the dual of a modular Nahm sum is likely to be modular. This duality observation motivates us to discover some new modular rank three Nahm sums by a lift-dual operation. We first lift Zagier's rank two Nahm sums to rank three and then calculate their dual, and we show that these dual Nahm sums are indeed modular. We achieve this by establishing the corresponding Rogers--Ramanujan type identities, which express these Nahm sums as modular infinite products. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_15767 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Some New Modular Rank Three Nahm Sums from a Lift-Dual Operation Cao, Zhineng Wang, Liuquan Number Theory Combinatorics 11P84, 33D15, 33D60, 11F03 Around 2007, Zagier discovered some rank two and rank three Nahm sums, and their modularity have now all been confirmed. Zagier also observed that the dual of a modular Nahm sum is likely to be modular. This duality observation motivates us to discover some new modular rank three Nahm sums by a lift-dual operation. We first lift Zagier's rank two Nahm sums to rank three and then calculate their dual, and we show that these dual Nahm sums are indeed modular. We achieve this by establishing the corresponding Rogers--Ramanujan type identities, which express these Nahm sums as modular infinite products. |
| title | Some New Modular Rank Three Nahm Sums from a Lift-Dual Operation |
| topic | Number Theory Combinatorics 11P84, 33D15, 33D60, 11F03 |
| url | https://arxiv.org/abs/2412.15767 |