Adjoint test modules along Cohen--Macaulay morphisms
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Acceso en línea: | |
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| _version_ | 1866918489717997568 |
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| author | Carvajal-Rojas, Javier Stäbler, Axel |
| author_facet | Carvajal-Rojas, Javier Stäbler, Axel |
| contents | We provide a transformation rule for adjoint test modules along Cohen--Macaulay maps between Cohen--Macaulay varieties that have $F$-rational geometric fibers. This is, in part, an effective version of Enescu's theorem on the ascent of $F$-rationality under local maps with $F$-rational geometric fibers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_07956 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Adjoint test modules along Cohen--Macaulay morphisms Carvajal-Rojas, Javier Stäbler, Axel Algebraic Geometry Commutative Algebra 13A35, 14B05, 14G17 We provide a transformation rule for adjoint test modules along Cohen--Macaulay maps between Cohen--Macaulay varieties that have $F$-rational geometric fibers. This is, in part, an effective version of Enescu's theorem on the ascent of $F$-rationality under local maps with $F$-rational geometric fibers. |
| title | Adjoint test modules along Cohen--Macaulay morphisms |
| topic | Algebraic Geometry Commutative Algebra 13A35, 14B05, 14G17 |
| url | https://arxiv.org/abs/2605.07956 |