Arithmetic of Mori domains and monoids

In this paper we introduce weakly C-monoids as a new class of upsilon-noetherian monoids. Weakly C-monoids generalize C-monoids and make it possible to study multiplicative properties of a wide class of Mori domains, e.g., rings of generalized power series with coefficients in a field and exponents in a finitely generated monoid. The main goal of the paper is to study the question when a weakly C-monoid is locally tame. After having proved a classification theorem for local tameness, we use it to Show that every locally tame weakly C-monoid whose complete integral closure has finite class group has finite catenary degree and finite set of distances. (C) 2007 Elsevier Inc. All rights reserved.