논문KCI 등재
On tor-torsion theories
대한수학회 (The Korean Mathematical Society)|2005.04|대한수학회논문집 (Communications of the KMS)|제20권 제2호|pp. 209-219
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Abstract
Tor-torsion theory was de¯ned by Jan Trlifaj in 2000. In this paper we introduce the notion of Co envelopes, CoCovers and Tor-generators as dual of envelopes, covers and generators in cotorsion(Ext-torsion) theory and deduce that each R-module has a projective and a cotorsion coprecover.
참고문헌 (5)
- "Special precovers in Cotorsion theoreisProc", 2 (2002)
- "Torsion theories and local Cohomology over commutativeNoetherian rings", 2, pp.~2 (1979)
- "Local cohomology" (1998), Cammbridge UniversityPress
- "Relative Homological Algebra" (2000)
- "Covers, envelopes, and Cotorsion theoreis, Lecture Notes for the Work-shop,\Homological methods in modules theory" (2000)
관련 논문AI추천
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