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arXiv 1307.3133math.DGmath.AP
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磁Dirac-调和映射

Magnetic Dirac-harmonic maps

Volker Branding

摘要:

研究了一类泛函,其临界点耦合曲面上的Dirac-调和映射为两种形式。这些临界点可以解释为将给定的中曲率方程耦合到旋量场。另一方面,这个泛函也是理论物理中超对称sigma模型的一部分。在二维中,它是共形不变的。我们称这种泛函磁狄拉克-调和映射的临界点。本文研究了磁狄喇克调和映射的几何和解析性质,包括正则性和孤立奇点的去除。

英文摘要:

We study a functional, whose critical points couple Dirac-harmonic maps from surfaces with a two form. The critical points can be interpreted as coupling the prescribed mean curvature equation to spinor fields. On the other hand, this functional also arises as part of the supersymmetric sigma model in theoretical physics. In two dimensions it is conformally invariant. We call critical points of this functional magnetic Dirac-harmonic maps. We study geometric and analytic properties of magnetic Dirac-harmonic maps including their regularity and the removal of isolated singularities.

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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