Torsion and complete dualizable objects in tensor-triangulated categories over a Noetherian ring
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| author | Maillard, Jun Šťovíček, Jan |
| author_facet | Maillard, Jun Šťovíček, Jan |
| contents | We study categories of dualizable torsion and complete objects for compactly-rigidly generated tensor-triangulated categories T with a Noetherian central action of a graded commutative Noetherian ring R. We show that they always admit a natural Noetherian action of the completed graded ring R^ and that the categories of dualizable torsion and complete objects can be abstractly reconstructed as tensor-triangulated R^-linear categories from the category of compact torsions objects with the corresponding structure. If the category of compact objects of T in addition admits a strong generator g, we show that the torsion coreflection (resp. complete reflection) of g is a strong generator for the category of dualizable torsion (resp. dualizable complete) objects. In that case, we also show that the categories of dualizable torsion and compact torsion objects determine each other in terms of Brown-type representability theorems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_04818 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Torsion and complete dualizable objects in tensor-triangulated categories over a Noetherian ring Maillard, Jun Šťovíček, Jan Category Theory Commutative Algebra Representation Theory 18G80, 18M05, 13B35, 13D30 We study categories of dualizable torsion and complete objects for compactly-rigidly generated tensor-triangulated categories T with a Noetherian central action of a graded commutative Noetherian ring R. We show that they always admit a natural Noetherian action of the completed graded ring R^ and that the categories of dualizable torsion and complete objects can be abstractly reconstructed as tensor-triangulated R^-linear categories from the category of compact torsions objects with the corresponding structure. If the category of compact objects of T in addition admits a strong generator g, we show that the torsion coreflection (resp. complete reflection) of g is a strong generator for the category of dualizable torsion (resp. dualizable complete) objects. In that case, we also show that the categories of dualizable torsion and compact torsion objects determine each other in terms of Brown-type representability theorems. |
| title | Torsion and complete dualizable objects in tensor-triangulated categories over a Noetherian ring |
| topic | Category Theory Commutative Algebra Representation Theory 18G80, 18M05, 13B35, 13D30 |
| url | https://arxiv.org/abs/2512.04818 |