Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 1983 Number 2, Pages 22–24
(Mi vmumm3465)
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Mathematics
Proper classes corresponding to the functors $n\cdot\operatorname{Ext}$
S. N. Fedin
Abstract:
We prove that for all
$n>0$ the functor
$n\cdot\operatorname{Ext}$ defines a proper clasp. We establish main properties of such classes.
UDC:
513
Received: 18.12.1981
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