四元数全纯几何：Pluecker公式，Dirac eigenvalue估计和调和2-环面的能量估计
Quaternionic holomorphic geometry: Pluecker formula, Dirac eigenvalue estimates and energy estimates of harmonic 2-tori
摘要：
本文发展了四元数全纯曲线理论的基本原理。该理论中的全纯函数是从黎曼曲面到四维球面的共形映射，即，四元数投影线证明了四元数全纯向量丛的Riemann-Roch定理、线性系的Kodaira嵌入和Pluecker关系等基本结果。解释这些结果的微分几何曲面在3-和4-空间暗示在整个文件。应用于估计的Willmore功能的常数中曲率环面，分别能量估计的调和2环面，和狄拉克特征值估计的黎曼自旋丛在2维。
英文摘要：
The paper develops the fundamentals of quaternionic holomorphic curve theory. The holomorphic functions in this theory are conformal maps from a Riemann surface into the 4-sphere, i.e., the quaternionic projective line. Basic results such as the Riemann-Roch Theorem for quaternionic holomorphic vector bundles, the Kodaira embedding and the Pluecker relations for linear systems are proven. Interpretations of these results in terms of the differential geometry of surfaces in 3- and 4-space are hinted at throughout the paper. Applications to estimates of the Willmore functional on constant mean curvature tori, respectively energy estimates of harmonic 2-tori, and to Dirac eigenvalue estimates on Riemannian spin bundles in dimension 2 are given.
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