Kempf分裂准则与巴比伦塔定理
The splitting criterion of Kempf and the Babylonian tower theorem
摘要:
我们证明了Kempf(1990)为了得到射影空间上向量丛的分裂准则而使用的思想导致了这类丛的巴比伦塔定理的一个初等证明,这一结果在秩2的情况下是由Barth-Van de Ven(1974)得到的,在任意秩的情况下是由Sato(1977)和Tyurin(1976)得到的.作为一个副产品,我们得到了一个轻微的改进,在特定的情况下考虑的Flenner(1985)的数值准则。
英文摘要:
We show that the idea used by Kempf (1990) in order to obtain a splitting criterion for vector bundles on projective spaces leads to an elementary proof of the Babylonian tower theorem for this class of bundles, a result due to Barth--Van de Ven (1974) in the rank 2 case and to Sato (1977) and Tyurin (1976) in the case of arbitrary rank. As a byproduct we obtain a slight improvement of the numerical criterion of Flenner (1985) in the particular case under consideration.
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