Tropical Lagrangians in toric del-Pezzo surfaces

被引:2
|
作者
Hicks, Jeffrey [1 ]
机构
[1] Univ Cambridge, Ctr Math Sci, Cambridge, England
来源
SELECTA MATHEMATICA-NEW SERIES | 2021年 / 27卷 / 01期
关键词
MIRROR SYMMETRY; DIMER MODELS;
D O I
10.1007/s00029-020-00614-1
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We look at how one can construct from the data of a dimer model a Lagrangian submanifold in (C*)(n) whose valuation projection approximates a tropical hypersurface. Each face of the dimer corresponds to a Lagrangian disk with boundary on our tropical Lagrangian submanifold, forming a Lagrangian mutation seed. Using this we find tropical Lagrangian tori L-T2 in the complement of a smooth anticanonical divisor of a toric del-Pezzo whose wall-crossing transformations match those of monotone SYZ fibers. An example is worked out for the mirror pair (CP2\E, W), X-9111. We find a symplectomorphism of CP2\E interchanging L-T2 and a SYZ fiber. Evidence is provided that this symplectomorphism is mirror to fiberwise Fourier-Mukai transform on X-9111.
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页数:50
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