ramification

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x]), except for the evident relation between their ramification points.
11 depicts the nature of the map [pi]: W [right arrow] C in the vicinity of its ramification points.
B]) = d and p [member of] B must be a simple ramification point for [f.
0] and has a 4-fold ramification point p [member of] [X.
Y]) that is it specializes to a ramification point of [G.
Its dimension is given by the number of the total ramification points (6 for Riemann-Hurwitz formula), minus the dimension of the group of the automorphisms of the base curve (1 because E is elliptic) and plus the dimension of the moduli space of the base curve (dim [[micro].