Glasnik Matematicki, Vol. 38, No.2 (2003), 263-268.

THE DEMEYER-KANZAKI GALOIS EXTENSION AND ITS SKEW GROUP RING

George Szeto and Lianyong Xue

Department of Mathematics, Bradley University, Peoria, Illinois 61625, USA
e-mail: szeto@hilltop.bradley.edu
e-mail: lxue@hilltop.bradley.edu


Abstract.   Several characterizations are given for a ring B being a DeMeyer-Kanzaki Galois extension with Galois group G in terms of the skew group ring B * G. Consequently, the results of S. Ikehata on commutative Galois algebras are generalized.

2000 Mathematics Subject Classification.   16S35, 16W20.

Key words and phrases.   Galois extensions, DeMeyer-Kanzaki Galois extensions, commutative Galois algebras, Azumaya algebras, H-separable extensions, skew group rings..


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