Doc. Math. (Bielefeld) Extra Vol. John H. Coates' Sixtieth Birthday, 261-300 (2006)
Summary
We complete the determination of the stable model of $X_0(Np^3)$, $p\ge5$, $(N,p)=1$ begun in CMc and compute the inertial action on the stable reduction of $X_0(p^3)$.