Multiple Mixing and Hybridization from Magma Source to Final Emplacement in the Permian Yamatu Pluton, the Northern Alxa Block, China
摘要：
Let X be an irreducible smooth projective curve of genus g. Let d r (g) be the Brill-Noether Number. In this paper we prove some results concerning the schemes W d r of special divisors. 1) Suppose dim (W d1 r )= d 1 r (g)0 and d r (g) < g. If W d 1 r is a reduced (resp. irreducible) scheme, then W d r is a reduced (resp. irreducible) scheme. 2) Under certain conditions, if Z is a generically reduced irreducible component of W d1 r then Z ⊕ W 1 0 is a generically reduced irreducible component of W d r . For r=1, we obtain some further results in this direction. 3) As an application of it we are able to prove some dimension theorems for the schemes W d 1 .
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DOI：
10.1007/BF01765318
被引量：
年份：
2016
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