Semistar dimension of polynomial rings and Prüfer-like domains

preprint2010arXivOpen access

Abstract

Let DD be an integral domain and ⋆\star a semistar operation stable and of finite type on it. In this paper we define the semistar dimension (inequality) formula and discover their relations with ⋆\star-universally catenarian domains and ⋆\star-stably strong S-domains. As an application we give new characterizations of ⋆\star-quasi-Prüfer domains and UMtt domains in terms of dimension inequality formula (and the notions of universally catenarian domain, stably strong S-domain, strong S-domain, and Jaffard domains). We also extend Arnold's formula to the setting of semistar operations.

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