On a Hereditary Property of QF Rings
Received:September 24, 1991  Revised:April 20, 1994
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Author NameAffiliation
Yang Cunjie Dept.of Math.
Capital Normal University
Beijing 
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Abstract:
      Let ring A be an extension of ring B with B a QF ring,In this paper, we show thatA is also a QF ring if one of the following condition is satisfied:(1)A is a finitely gen-erated free module and A/B is a projective extension. (2)A/B is a Frobenius extension.(3)A/B is a separable extension and A is a flat module. A/B is an H-separable extension.
Citation:
DOI:10.3770/j.issn:1000-341X.1994.04.029
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