Minimal resolution and stable reduction of X0(N)
Annales de l'Institut Fourier, Grenoble, 40, 1, 31-67
(1990).
Summary/Résumé
For N a positive integer, let X0(N) denote the proper
model over Z of the modular curve associated to elliptic
curves with a given cyclic subgroup of order N, constructed by
normalization and described by Katz and Mazur in their book
on Arithmetic moduli of elliptic curves. In this paper,
we determine the minimal resolution of X0(N) over
Z[1/6] for any N, and the stable reduction modulo a
prime p of X0(p2N) for all p>3 and N prime
to p.
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