Sun, Hae-Sang Max Planck Institute for Mathematics, Max Planck Society;
Sun_cuspidal_2010.pdf (Any fulltext), 230KB
Sun, H.-S. (2010). Cuspidal class number of the tower of modular curves X_{1}(Np^{n}). Mathematische Annalen, 348(4), 909-927. doi:10.1007/s00208-010-0505-7.