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Type semigroups and factorization problems. (Typenhalbgruppen und Faktorisierungsprobleme.) (German) Zbl 0769.11039
The author presents a general scheme systematizing much of previous investigations [see e.g. the reviewer, Elementary and analytic theory of algebraic numbers (2nd ed.) (Springer 1990; Zbl 0717.11045), and the literature quoted there] dealing with several aspects of non-unique factorization in algebraic number fields. This approach is used to obtain new proofs of old results and several new quantitative results concerning numbers with unique factorization in a given field.

##### MSC:
 11R27 Units and factorization 20M14 Commutative semigroups
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##### References:
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