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Abstract
We construct a ring that is strongly graded by the integers such that it is not graded equivalent to a skew group ring. This is in contrast to the finite case and the results of Cohen and Montgomery, in which every strongly graded ring is graded equivalent to a skew group ringFootnote 2
1The author's research was partially supported by the national security agency
21991 mathematics subject classification: 16D90, 16S35, 16S40, 16S50, 16W50
1The author's research was partially supported by the national security agency
21991 mathematics subject classification: 16D90, 16S35, 16S40, 16S50, 16W50
Notes
1The author's research was partially supported by the national security agency
21991 mathematics subject classification: 16D90, 16S35, 16S40, 16S50, 16W50