MATEMATIČKI VESNIK
МАТЕМАТИЧКИ ВЕСНИК



MATEMATIČKI VESNIK
Relative EXT groups of Abelian categories
Chaoling Huang and Kai Deng

Abstract

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

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Keywords: Relative Ext group; precovering; $\mathcal{F}$-resolution.

MSC: 18G15, 18G25

Pages:  364--372     

Volume  65 ,  Issue  3 ,  2013