Free summands of stably free modules
Let R be a commutative ring. One may ask when a general R-module P that satisfies $P \oplus R \cong R^n$ has a free summand of a given rank. M. Raynaud translated this question into one about sections of certain maps between Stiefel varieties: if $V_r(\mathbb {A}^n)$ denotes the variet...
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| Autores principales: | , |
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| Formato: | Artigo |
| Lenguaje: | Inglês |
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Cambridge University Press
2025-01-01
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| Colección: | Forum of Mathematics, Sigma |
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| Acceso en línea: | https://www.cambridge.org/core/product/identifier/S2050509425000398/type/journal_article |
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