Fully-matching results
Results that match 7 of 8 words
Since any Z-torsion-free module over such a ringis free it follows easily that M is conjugate to A, B or B2. ... The normalizers in SL(2,Z) of the subgroups generated by A, B or B2 areeasily seen to be finite cyclic.
www.maths.usyd.edu.au/u/jonh/fmgk23.pdf