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Tropical intersection theory from toric varieties

机译:复曲面品种的热带相交理论

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We apply ideas from intersection theory on toric varieties to tropical intersection theory. We introduce mixed Minkowski weights on toric varieties which interpolate between equivariant and ordinary Chow cohomology classes on compact toric varieties. These objects fit into the framework of tropical intersection theory developed by Allermann and Rau. Standard facts about intersection theory on toric varieties are applied to show that the definitions of tropical intersection product on tropical cycles in? given by Allermann-Rau and Mikhalkin are equivalent. We introduce an induced tropical intersection theory on subvarieties on a toric variety. This gives a conceptual proof that the intersection of tropical ψ-classes on M? _(0,n) used by Kerber and Markwig computes classical intersection numbers.
机译:我们将有关复曲面品种的相交理论应用于热带相交理论。我们在复曲面品种上引入混合Minkowski权重,该权重插值在紧凑复曲面品种的等变和普通Chow同调类之间。这些对象符合Allermann和Rau提出的热带交叉理论的框架。应用有关复曲面品种交会理论的标准事实来证明热带循环中热带交会产品的定义是? Allermann-Rau和Mikhalkin给出的值相等。我们介绍了复曲面变种的亚变种的诱导热带相交理论。这提供了一个概念证明,证明了M?上热带ψ类的交集。 Kerber和Markwig使用的_(0,n)计算经典交点数。

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