A STRONGLY GRADED RING THAT IS NOT GRADED EQUIVALENT TO A SKEW GROUP-RING

Authors
HAEFNER J
Citation
J. Haefner, A STRONGLY GRADED RING THAT IS NOT GRADED EQUIVALENT TO A SKEW GROUP-RING, Communications in algebra, 22(12), 1994, pp. 4795-4799
Citations number
13
Categorie Soggetti
Mathematics, Pure",Mathematics
Journal title
Communications in algebra → ACNP
ISSN journal
00927872
Volume
22
Issue
12
Year of publication
1994
Pages
4795 - 4799
Database
ISI
SICI code
0092-7872(1994)22:12<4795:ASGRTI>2.0.ZU;2-E
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 e very strongly graded ring is graded equivalent to a skew group ring.2