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Elasticity of when A\subset B is a minimal extension of integral domains

Volume 122 / 2011

Ahmed Ayache, Hanen Monceur Colloquium Mathematicum 122 (2011), 11-19 MSC: Primary 13A05, 13F15; Secondary 13A15, 13F20. DOI: 10.4064/cm122-1-2

Abstract

We investigate the elasticity of atomic domains of the form \Re =A+XB[X], where X is an indeterminate, A is a local domain that is not a field, and A\subset B is a minimal extension of integral domains. We provide the exact value of the elasticity of \Re in all cases depending the position of the maximal ideals of B. Then we investigate when such domains are half-factorial domains.

Authors

  • Ahmed AyacheDepartment of Mathematics
    Faculty of Science
    University of Sana'a
    P.O. Box 12460, Sana'a, Yemen
    e-mail
  • Hanen MonceurDepartment of Mathematics
    Faculty of Science
    University of Sfax
    P.O. Box 1171, 3000 Sfax, Tunisia
    e-mail

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