Bull. Korean Math. Soc. 2014; 51(1): 173-187
Printed January 1, 2014
https://doi.org/10.4134/BKMS.2014.51.1.173
Copyright © The Korean Mathematical Society.
Zenghui Gao
Chengdu University of Information Technology
In this article, we introduce and study the Gorenstein cotorsion dimension of modules and rings. It is shown that this dimension has nice properties when the ring in question is left GF-closed. The relations between the Gorenstein cotorsion dimension and other homological dimensions are discussed. Finally, we give some new characterizations of weak Gorenstein global dimension of coherent rings in terms of Gorenstein cotorsion modules.
Keywords: Gorenstein flat module, Gorenstein cotorsion dimension, weak Gorenstein global dimension, GF-closed ring
MSC numbers: 16E10, 16E30, 16E50
2017; 54(6): 1935-1950
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd