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arXiv 1109.3255math.SG
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射影平面与二结点三次曲线的镜像上的Floer上同调

Floer cohomology in the mirror of the projective plane and a binodal cubic curve

James Pascaleff

摘要:

本文构造了一族Landau-Ginzburg镜像到射影平面的拉格朗日子流形,该平面以一条双节三次曲线为反正则因子。这些对象在镜像对称下对应于扭曲层O(1)的幂,因此它们的弗洛尔上同调群形成同构于齐次坐标环的代数。一个有趣的特点是存在一个奇异环面纤维的镜子,其中的拉格朗日部分。Floer上同调的代数结构是通过计算Lefschetz纤维化的截面来计算的。我们的结果与Abouzaid-Gross-Siebert提出的热带模拟一致。讨论了反正则因子的分量的补的镜像的推广。

英文摘要:

We construct a family of Lagrangian submanifolds in the Landau--Ginzburg mirror to the projective plane equipped with a binodal cubic curve as anticanonical divisor. These objects correspond under mirror symmetry to the powers of the twisting sheaf O(1), and hence their Floer cohomology groups form an algebra isomorphic to the homogeneous coordinate ring. An interesting feature is the presence of a singular torus fibration on the mirror, of which the Lagrangians are sections. The algebra structure on the Floer cohomology is computed by counting sections of Lefschetz fibrations. Our results agree with the tropical analog proposed by Abouzaid--Gross--Siebert. An extension to mirrors of the complements of components of the anticanonical divisor is discussed.

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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