Free groups acting without fixed points on rational spheres

Wydawnictwa / Czasopisma IMPAN / Acta Arithmetica / Wszystkie zeszyty

Kenzi Satô Acta Arithmetica 85 (1998), 135-140 DOI: 10.4064/aa-85-2-135-140

For every positive rational number q, we find a free group of rotations of rank 2 acting on (√q