Bulletin of the Korean Mathematical Society (대한수학회보)

Korean Mathematical Society (대한수학회)
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SKEW LAURENT POLYNOMIAL EXTENSIONS OF BAER AND P.P.-RINGS

  • Nasr-Isfahani, Alireza R. (Department of Mathematics Tarbiat Modares University) ;
  • Moussavi, Ahmad (Department of Mathematics Tarbiat Modares University)
  • Published : 2009.11.30
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Abstract

Let R be a ring and ${\alpha}$ a monomorphism of R. We study the skew Laurent polynomial rings R[x, x$^{-1}$; ${\alpha}$] over an ${\alpha}$-skew Armendariz ring R. We show that, if R is an ${\alpha}$-skew Armendariz ring, then R is a Baer (resp. p.p.-)ring if and only if R[x, x$^{-1}$; ${\alpha}$] is a Baer (resp. p.p.-) ring. Consequently, if R is an Armendariz ring, then R is a Baer (resp. p.p.-)ring if and only if R[x, x$^{-1}$] is a Baer (resp. p.p.-)ring.

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