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arXiv 1902.07486math.AG
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关于$\mathbb{C} P^3\#\overline{\mathbb{C} P}^3$的Gromov-Witten-Welschinger不变量的注记

A remark on Gromov-Witten-Welschinger invariants of $\mathbb{C} P^3\#\overline{\mathbb{C} P}^3$

Yanqiao Ding

摘要:

推广了E. Brugallé和P. Georgieva在[BG 16 b]到$\mathbb{C} P^3\#\overline{\mathbb{C} P}^3$。利用二次曲面束,$\mathbb{C} P^3\#\overline{\mathbb{C} P}^3$的某些实的和复的枚举不变量可以写成$\mathbb{C} P^2$在两个实点上爆破的枚举不变量的组合。

英文摘要:

We generalize the formula of Gromov-Witten-Welschinger invariants of $\mathbb{C} P^3$ established by E. Brugallé and P. Georgieva in [BG16b] to $\mathbb{C} P^3\#\overline{\mathbb{C} P}^3$. Using pencils of quadrics, some real and complex enumerative invariants of $\mathbb{C} P^3\#\overline{\mathbb{C} P}^3$ can be written as the combination of the enumerative invariants of the blow up of $\mathbb{C} P^2$ at two real points.

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