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Halphen conditions and postulation of nodes

L. Chiantini·N. Chiarli·S. Greco
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Abstract

We give sharp lower bounds for the postulation of the nodes of a general plane projection of a smooth connected curve C in P^r and we study the relationships with the geometry of the embedding. Strict connections with Castelnuovo's theory and Halphen's theory are shown.

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L. Chiantini, N. Chiarli, S. Greco. 2004-07-09. Halphen conditions and postulation of nodes. https://arxiv.org/abs/math/0407169

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