projective lines over rings;
projective groups over rings;
permutation groups;
D O I:
10.1006/jabr.2001.9064
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In this paper, Maurer's theorems characterizing certain subgroups of the projective group PGL(2)(K) over a field K are generalized to the case of rings. (C) 2002 Elsevier Science (USA).