Given an integer N greater than or equal to 1. For a prime number p we
note Q(p)(nr) the maximal unramified extension of Q(p). Suppose p(v)
exactly divides N then we use the Carayol's works and the local class
field theory Go find an extension E(v) of Q(p)(nr) on which the jacobi
an J(0) of the modular curve X(0)(N) has a semi-stable reduction and w
e estimate its degree.