On the finite generation of the cohomology of bosonizations
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908395213160448 |
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| author | Andruskiewitsch, Nicolás Jaklitsch, David Nguyen, Van C. Oswald, Amrei Plavnik, Julia Shepler, Anne V. Wang, Xingting |
| author_facet | Andruskiewitsch, Nicolás Jaklitsch, David Nguyen, Van C. Oswald, Amrei Plavnik, Julia Shepler, Anne V. Wang, Xingting |
| contents | We use deformation sequences of (Hopf) algebras, extending the results of Negron and Pevtsova, to show that bosonizations of some suitable braided Hopf algebras by some suitable finite-dimensional Hopf algebras have finitely generated cohomology. In fact, our results are shown in more generality for smash products. As applications, we prove the bosonizations of some Nichols algebras (such as Nichols algebras of diagonal type, the restricted Jordan plane, Nichols algebras of direct sums of Jordan blocks plus points labeled with 1), by some suitable finite-dimensional Hopf algebras, have finitely generated cohomology, recovering some known results as well as providing new examples. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_05267 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the finite generation of the cohomology of bosonizations Andruskiewitsch, Nicolás Jaklitsch, David Nguyen, Van C. Oswald, Amrei Plavnik, Julia Shepler, Anne V. Wang, Xingting Quantum Algebra K-Theory and Homology Rings and Algebras 16T05, 16E40, 18M05 We use deformation sequences of (Hopf) algebras, extending the results of Negron and Pevtsova, to show that bosonizations of some suitable braided Hopf algebras by some suitable finite-dimensional Hopf algebras have finitely generated cohomology. In fact, our results are shown in more generality for smash products. As applications, we prove the bosonizations of some Nichols algebras (such as Nichols algebras of diagonal type, the restricted Jordan plane, Nichols algebras of direct sums of Jordan blocks plus points labeled with 1), by some suitable finite-dimensional Hopf algebras, have finitely generated cohomology, recovering some known results as well as providing new examples. |
| title | On the finite generation of the cohomology of bosonizations |
| topic | Quantum Algebra K-Theory and Homology Rings and Algebras 16T05, 16E40, 18M05 |
| url | https://arxiv.org/abs/2506.05267 |