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Sets of arithmetical invariants in transfer Krull monoids
Authors:Alfred Geroldinger  Qinghai Zhong
Affiliation:University of Graz, NAWI Graz, Institute for Mathematics and Scientific Computing, Heinrichstraße 36, 8010 Graz, Austria
Abstract:Transfer Krull monoids are a recently introduced class of monoids and include the multiplicative monoids of all commutative Krull domains as well as of wide classes of non-commutative Dedekind domains. We show that transfer Krull monoids are fully elastic (i.e., every rational number between 1 and the elasticity of the monoid can be realized as the elasticity of an element). In commutative Krull monoids which have sufficiently many prime divisors in all classes of their class group, the set of catenary degrees and the set of tame degrees are intervals. Without the assumption on the distribution of prime divisors, arbitrary finite sets can be realized as sets of catenary degrees and as sets of tame degrees.
Keywords:20M13  13A05  13F05  16H10  16U30  Krull monoids  Bounded hereditary prime rings  Sets of lengths  Sets of distances  Elasticities  Catenary degrees
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