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Resumen de A characterization of Krull monoids for which sets of lengths are (almost) arithmetical progressions

Alfred Geroldinger, Wolfgang A. Schmid

  • Let H be a Krull monoid with finite class group G and suppose that every class contains a prime divisor. Then sets of lengths in H have a well-defined structure which depends only on the class group G. With methods from additive combinatorics we establish a characterization of those class groups G guaranteeing that all sets of lengths are (almost) arithmetical progressions.


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