作者: Arnaud Beauville
DOI: 10.1215/S0012-7094-99-09704-1
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摘要: The aim of these notes is to explain the remarkable formula found by Yau and Zaslow [Y-Z] express number rational curves on a K3 surface. Projective surfaces fall into countably many families (Fg)g≥1 ; surface in Fg admits gdimensional linear system genus g . A naive count constants suggests that such will contain positive number, say n(g) , (highly singular) curves. is∑