OverviewSolved · 13Liked problems · 4Achievements / 3Liked problemsEscape from infinityNo linear recurrence for the primesMatrices with same exponentialLes sous-groupes finis de SL2(Z)\mathrm{SL}_{2}(\mathbb{Z})SL2(Z) sont de cardinal 1,2,3,41,2,3,41,2,3,4 ou 6.6.6.FR
