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arXiv math/0311395math.GTmath.SG
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具有$b_2^+ =1$和$c_1^2 =2$的Simply connected辛4-流形

Simply connected symplectic 4-manifolds with $b_2^+ =1$ and $c_1^2 =2$

Jongil Park

摘要:

利用有理blow-down技巧,构造了一类新的单连通辛4-流形,它们具有与有理曲面不同构的$b_2^+ =1$和$c_1^2 =2$.作为推论,我们得出有理曲面${\mathbf CP}^2 \sharp 7{\bar{\mathbf CP}^2}$具有奇异光滑结构的结论.

英文摘要:

In this article we construct a new family of simply connected symplectic 4-manifolds with $b_2^+ =1$ and $c_1^2 =2$ which are not diffeomorphic to rational surfaces by using rational blow-down technique. As a corollary, we conclude that a rational surface ${\mathbf CP}^2 \sharp 7{\bar{\mathbf CP}^2}$ admits an exotic smooth structure.

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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