On the enumeration of rational plane curves with tangency conditions
Algebraic Geometry
2007-05-23 v1
Abstract
We use twisted stable maps to answer the following question. Let E\subset P^2 be a smooth cubic. How many rational degree d curves pass through a general points of E, have b specified tangencies with E and c unspecified tangencies, and pass through 3d-1-a-2b-c general points of P^2? The answer is given as a generalization of Kontsevich's recursion. We also investigate more general enumerative problems of this sort, and prove an analogue of a formula of Caporaso and Harris.
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Cite
@article{arxiv.math/0509671,
title = {On the enumeration of rational plane curves with tangency conditions},
author = {Charles Cadman},
journal= {arXiv preprint arXiv:math/0509671},
year = {2007}
}
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17 pages