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On the Krull dimension of rings of integer-valued rational functions

2024/12/10 by Mohamed Mahmoud Chems-Eddin, B. Feryouch, Chems-Eddin, Mohamed Mahmoud +5
Mathematics · Computer Science · #Rings, Modules, and Algebras #Commutative Algebra and Its Applications #Polynomial and algebraic computation

paper · pdf · doi:10.48550/arxiv.2412.07931

Abstract

Let D be an integral domain with quotient field K and E a subset of K. The ring of integer-valued rational functions on E is defined as intR(E,D):=\lbrace φ∈ K(X); φ(E)⊆ D\rbrace. The main goal of this paper is to investigate the Krull dimension of the ring intR(E,D). Particularly, we are interested in domains that are either Jaffard or PVDs. Interesting results are established with some illustrating examples.

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