Article
| Title: | A module-theoretic interpretation of quantum expansion formula (English) |
| Author: | Yu, Yutong |
| Language: | English |
| Journal: | Czechoslovak Mathematical Journal |
| ISSN: | 0011-4642 (print) |
| ISSN: | 1572-9141 (online) |
| Volume: | 76 |
| Issue: | 3 |
| Year: | 2026 |
| Pages: | 809-837 |
| Summary lang: | English |
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| Category: | math |
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| Summary: | We provide a module-theoretic interpretation of the expansion formula given by M. Huang (2022), which defines a map on perfect matchings to compute the expansion of quantum cluster variables in quantum cluster algebras arising from unpunctured surfaces. In addition, we present a multiplication formula for string modules with one-dimensional extension space, derived using the skein relations. For the Kronecker type, an alternative expansion formula was given in İ. Çanakçı and T. Lampe (2020), and we show that the two expansion formulas coincide. (English) |
| Keyword: | quantum cluster algebra |
| Keyword: | string module |
| Keyword: | perfect matching |
| Keyword: | canonical submodule |
| MSC: | 13F60 |
| MSC: | 16G20 |
| DOI: | 10.21136/CMJ.2026.0247-25 |
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| Date available: | 2026-09-11T13:11:52Z |
| Last updated: | 2026-09-14 |
| Stable URL: | http://hdl.handle.net/10338.dmlcz/153729 |
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