Springer (part of Springer Nature), Afrika Matematica, 1-2(27), p. 133-139
DOI: 10.1007/s13370-015-0329-4
Full text: Unavailable
In this paper we study some special elongations of QTAG-modules and we find a suitable condition under which a special \(ω \)-elongation of a summable module by a \((ω +k)\)-projective QTAG-module is itself a summable QTAG-module. Also we give a characterization for an \(α \)-\(Σ \)-module to be totally projective using the special elongations of these modules.