Abstract
In this paper we introduce the new class of QTAG-modules namely $\omega_1$-$(\omega+n)$-projective modules, which is an amalgamation of three important classes of modules: $n$-bounded modules, the direct sum of uniserial modules and the countably generated modules. This class is given many equivalent characterizations including being the smallest class containing the $(\omega+n)$-projective modules that is closed with respect to $\omega_1$-bijective homomorphisms.
Acknowledgment
The author is thankful to the referee for his/her valuable suggestions and careful reading of the manuscript.
Citation
Fahad Sikander. "On projective QTAG-modules." Tbilisi Math. J. 12 (1) 55 - 68, January 2019. https://doi.org/10.32513/tbilisi/1553565626
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