Title of article :
CONSTRUCTION OF HOMOTOPY EQUIVALENCE OF TRUNCATED COMPLEXES
Author/Authors :
Rao, Yanping Department of Mathematics - Lanzhou Jiaotong University, China , Yang, Gang Department of Mathematics - Lanzhou Jiaotong University, China
Abstract :
For a ring R, given two truncated proper left C-resolutions of equal
length for the same module, where C is a subcategory of R-modules, we obtain
a pair of complexes of the same homotopy type and give some examples.
Keywords :
Proper resolution , homotopy equivalent , precover , precovering class
Journal title :
International Electronic Journal of Algebra
