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arXiv 1612.04083math.AG
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平面曲线对数拐点的热带极限

Tropical limit of log-inflection points for planar curves

Grigory Mikhalkin, Arthur Renaudineau

摘要:

本文描述了$(\mathbb{C}^*)^2$中曲线对数拐点在通过热带极限时的行为。我们表明,这样的点积累的限制热带曲线的有界边缘的中点对。对数拐点是相对于由乘法群定律给出的$(\mathbb{C}^*)^2$的并行化的拐点。

英文摘要:

The paper describes behavior of log-inflection points of curves in $(\mathbb{C}^*)^2$ under passing to the tropical limit. We show that such points accumulate by pairs at the midpoints of bounded edges in the limiting tropical curve. Log-inflection points are points of inflection with respect to the parallelization of $(\mathbb{C}^*)^2$ given by the multiplicative group law.

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