Weierstrass representation of Lagrangian surfaces in four-dimensional space using spinors and quaternions
Weierstrass representation of Lagrangian surfaces in four-dimensional space using spinors and quaternions
复制标题
使用旋量和四元数对四维空间中的拉格朗日曲面进行 Weierstrass 表示
DOI:
10.1007/s000140050144
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发表时间:
2000
影响因子:
0.9
通讯作者:
P. Romon
中科院分区:
文献类型:
--
作者:
F. Hélein;P. Romon
We derive a Weierstrass-type formula for conformal Lagrangian immersions in Euclidean 4-space, and show that the data satisfies an equation similar to Dirac equation with complex potential. Alternatively this representation has a simple formulation using quaternions. We apply it to the Hamiltonian stationary case and construct all possible tori, thus obtaining a first approach to a moduli space in terms of a simple algebraic-geometric problem on the plane. We also classify Hamiltonian stationary Klein bottles and show they self-intersect.