科研之友
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摘要
In this paper, we study numerical classes of integral curves on a ruled surface P(E) associated to a stable bundle E. The nef cone of a ruled surface is generated by the classes of a minimal section C-0 and a fiber f. We compute the smallest integer b such that the class kC(0) + bf contains a multisecant curve for k = 2 and 3. Also we find its consequence on the Lange stability of Sym(k)E.
- 出版日期2018-3-1
