Relative EXT groups of Abelian categories

Authors

  • Chaoling Huang Department of Mathematics, Jiangxi Agricultural University, Nanchang 330045, China Author
  • Kai Deng School of Mathematics and Computer Science, Northwest University for Nationalities, Lanzhou, 730124, China Author

Keywords:

Relative Ext group, precovering, $\mathcal{F}$-resolution

Subjects:

18G15, 18G25

Abstract

In this article, we characterize the relative Ext groupsof abelian categories relative to a fixed precovering class$\Cal{F}$ and give some examples.

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Published

2013-07-15

Issue

Vol. 65 No. 3 (2013): Vol. 65, Issue 3

Section

Articles

License

Copyright (c) 2013 Authors retain copyright to their work.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.