Abstract
In the sequel we shall consider only algebraic surfaces without singularities in Sr, or with ordinary singularities in S3, obtained from the former surfaces by a generic projection. The points of the nodal curve, with the exception of the cuspidal points, should be considered as pairs of distinct points of the surface. It clearly appears from the projection that the cuspidal points are the branch points of the doubly covered nodal curve.
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© 1995 Springer-Verlag Berlin Heidelberg
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Lipman, J. (1995). Linear Systems of Curves. In: Algebraic Surfaces. Classics in Mathematics, vol 61. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-61991-5_2
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DOI: https://doi.org/10.1007/978-3-642-61991-5_2
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-58658-6
Online ISBN: 978-3-642-61991-5
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