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TTF-classes over perfect rings

Published online by Cambridge University Press:  09 April 2009

J. S. Alin
Affiliation:
The University of Utah, Salt Lake City, Utah
E. P. Armendariz
Affiliation:
The University of Texas, Austin, Texas
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For a ring R with unit, let RM denote the category of unitary left R-modules. Following S.E. Dickson [3], a(non-empty) class of R-modules is a torsion class in rM if is closed under factors, extensions, and direct sums. If, in addition, is closed under submodules, then is said to be hereditary.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1970

References

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