Ramification points of double coverings of curves and Weierstrass points
- Cite this article as:
- Ballico, E. & Del Centina, A. Annali di Matematica pura ed applicata (1999) 177: 293. doi:10.1007/BF02505914
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Let π: X→C be a double covering with X smooth curve and C elliptic curve. Let R(π)⊂X be the ramification locus of π. Every P∈R(π) is a Weierstrass point of X and we study the triples (C, π, X) for which the set of corresponding Weierstrass points have certain semigroups of non-gaps. We study the same problem also for triple cyclic coverings of C.