Note on the unit group of R[X;S], II

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概要

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• Let R be a commutative ring, and let S be a commutative semigroup. We study a semigroup version of Karpilovskys Problem [K, chapter 7, problem 9] concerning the unit group of a group ring. We give a preciser decomposition theorem for the unit group of a semigroup ring.

著者

• Matsuda Ryuki

  Department Of Mathematical Science Ibaraki University

• Matsuda Ryuki

  Department of Mathematical Sciences, Ibaraki University

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