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arXiv · 1911.10577

Catenarian FCP ring extensions

Gabriel Picavet·Martine Picavet-L'Hermitte
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Abstract

If $R\subseteq S$ is a ring extension of commutative unital rings, the poset $[R,S]$ of $R$-subalgebras of $S$ is called catenarian if it verifies the Jordan-Hölder property. This property has already been studied by Dobbs and Shapiro for finite extensions of fields. We investigate this property for arbitrary ring extensions, showing that many type of extensions are catenarian. We reduce the characterization of catenarian extensions to the case of field extensions, an unsolved question at that time.

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Gabriel Picavet, Martine Picavet-L'Hermitte. 2019-11-24. Catenarian FCP ring extensions. https://arxiv.org/abs/1911.10577

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