• On Hollow-Lifting Modules 

      Orhan, Nil; Tuetuencue, Derya Keskin; Tribak, Rachid (Mathematical Soc Rep China, 2007)
      Let R be any ring and let M be any right R-module. M is called hollow-lifting if every submodule N of M such that M/N is hollow has a coessential submodule that is a direct summand of M. We prove that every amply supplemented ...
    • On Modules And Matrix Rings With Sip-Extending 

      Karabacak, F.; Tercan, A. (Mathematical Soc Rep China, 2007)
      In this note we study modules with the property that the intersection of two direct summands is essential in a direct summand (SIP-extending). Amongst other results we show that the class of right SIP-extending modules is ...
    • On The Second Equation Of Obata 

      Erkekoglu, Fazilet (Mathematical Soc Rep China, 2011)
      In this paper we prove some results related to a certain vector field satisfying the second equation of Obata [8] on vector fields.
    • Primitive Submodules, Co-Semisimple and Regular Modules 

      Medina-Barcenas, Mauricio; Ozcan, A. Cigdem (Mathematical Soc Rep China, 2018)
      In this paper, primitive submodules are defined and various properties of them are investigated. Some characterizations of co-semisimple modules are given and several conditions under which co-semisimple and regular modules ...
    • Pseudo Projective Modules Which are not Quasi Projective and Quivers 

      D'Este, Gabriella; Tutuncu, Derya Keskin (Mathematical Soc Rep China, 2018)
      In this paper we construct pseudo projective modules which are not quasi projective over non-commutative perfect rings. To do it we construct finite dimensional quiver algebras over the field Z(2). The modules which are ...
    • Reduced and P.Q.-Baer Modules 

      Baer, Muhittin; Harmanci, Abdullah (Mathematical Soc Rep China, 2007)
      In this paper, we study p.q.-Baer modules and some polynomial extensions of p.q.-Baer modules. In particular, we show: (1) For a reduced module M-R,M-R is ap.p.-moduleiff M-R is a p.q.-Baer module. (2) If M-R is an ...