Abstract:We constructively prove that for any ring R with Krull dimension d, the ring R X locally behaves like the ring R(X) or a localization of a polynomial ring of type (S −1 R)[X] with S a multiplicative subset of R such that the Krull dimension of S −1 R is d − 1. As an application, we give a simple and constructive proof of the Lequain-Simis Induction Theorem which is an important variation of the Quillen Induction Theorem.
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