We describe all pairs of semigroups S and radicals Ï, such that Ï is invariant in S-graded rings. This generalises several known results due to Amitsur and Sands.
History
Publication title
Proceedings of the Royal Society of Edinburgh
Volume
127
Pagination
773-780
ISSN
0308-2105
Department/School
School of Natural Sciences
Publisher
Royal Soc Edinburgh
Place of publication
22-24 George St, Edinburgh, Scotland, Midlothian, Eh2 2Pq