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arXiv 1407.7632math.AG
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具有足够自同构的伪射影平面上的一个消灭定理

A vanishing theorem on fake projective planes with enough automorphisms

JongHae Keum

摘要:

对任意伪射影平面$X$,证明了对于所有的$i$和任意的具有$L^2=1$的样本线丛$L$,都有$H^i(X, 2L)=0$.对于每一个伪射影平面的自同构群的阶为9,我们证明了相同的消失的每一个立方根(和它的扭曲2-挠)的典范丛$K$。作为直接的结果,在这样的假射影平面上存在长度为3的例外序列。

英文摘要:

For every fake projective plane $X$ with automorphism group of order 21, we prove that $H^i(X, 2L)=0$ for all $i$ and for every ample line bundle $L$ with $L^2=1$. For every fake projective plane with automorphism group of order 9, we prove the same vanishing for every cubic root (and its twist by a 2-torsion) of the canonical bundle $K$. As an immediate consequence, there are exceptional sequences of length 3 on such fake projective planes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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