On Quasi-Baer and p.q.-Baer Modules

BAŞER M., Harmanci A.

KYUNGPOOK MATHEMATICAL JOURNAL, cilt.49, sa.2, ss.255-263, 2009 (ESCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Konu: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.5666/kmj.2009.49.2.255
  • Sayfa Sayıları: ss.255-263


For an endomorphism alpha of R, in [1], a module M-R is called alpha-compatible if, for any m is an element of M and a is an element of R, ma = 0 iff m alpha(a) = 0, which are a generalization of alpha-reduced modules. We study on the relationship between the quasi-Baerness and p.q.-Baer property of a module MR and those of the polynomial extensions (including formal skew power series, skew Laurent polynomials and skew Laurent series). As a consequence we obtain a generalization of [2] and some results in [9]. In particular, we show: for an alpha-compatible module M-R (1) M-R is p.q.-Baer module iff M[x;alpha] R-[x,R-alpha] is p.q.-Baer module. (2) for an automorphism alpha of R, MR is p.q.-Baer module iff M[x, x(-1); alpha](R[x,x-1;alpha,]) is p.q.Baer module.