On the global dimension of Nakayama algebras
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917966815166464 |
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| author | Klász, Viktória Marczinzik, René Mellit, Anton Rubey, Martin Stump, Christian |
| author_facet | Klász, Viktória Marczinzik, René Mellit, Anton Rubey, Martin Stump, Christian |
| contents | We study the global dimension of Nakayama algebras. In the case of linear Nakayama algebras, which are in canonical bijection to Dyck paths, we show that the global dimension has the same distribution as the height of Dyck paths. For cyclic Nakayama algebras an explicit classification of finite global dimension is not known. However, we show that in certain special cases cyclic Nakayama algebras with finite global dimension can again be interpreted as Dyck paths. In particular, we show that there is a natural bijection between sincere Nakayama algebras and Dyck paths. In this case, we find that the global dimension is in fact twice the bounce count of the corresponding Dyck path. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_18415 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the global dimension of Nakayama algebras Klász, Viktória Marczinzik, René Mellit, Anton Rubey, Martin Stump, Christian Combinatorics Representation Theory We study the global dimension of Nakayama algebras. In the case of linear Nakayama algebras, which are in canonical bijection to Dyck paths, we show that the global dimension has the same distribution as the height of Dyck paths. For cyclic Nakayama algebras an explicit classification of finite global dimension is not known. However, we show that in certain special cases cyclic Nakayama algebras with finite global dimension can again be interpreted as Dyck paths. In particular, we show that there is a natural bijection between sincere Nakayama algebras and Dyck paths. In this case, we find that the global dimension is in fact twice the bounce count of the corresponding Dyck path. |
| title | On the global dimension of Nakayama algebras |
| topic | Combinatorics Representation Theory |
| url | https://arxiv.org/abs/2503.18415 |