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arXiv math/9901125math.DG
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Weyl几何中的旋量方程

Spinor equations in Weyl geometry

Volker Buchholz

摘要:

本文研究了具有CSpin结构的Weyl流形上的Dirac方程、扭量方程和Killing方程。给出了一个共形的Schr“odinger-Lichnerowicz公式,并利用它给出了这些方程的可积性条件。通过引入任意权旋量的Killing方程,将AndreiMoroianu在[9]中的结果推广到如下意义.唯一的非封闭Weyl流形的维数大于大于3,承认解决方案的真正Killing方程是4维和非紧。任何在这些维中存在一个真正的Killing旋量的外尔流形都必须是爱因斯坦-外尔流形。

英文摘要:

In this paper, the Dirac, twistor and Killing equations on Weyl manifolds with CSpin structures are investigated. A conformal Schr"odinger-Lichnerowicz formula is presented and used to show integrability conditions for these equations. By introducing the Killing equation for spinors of arbitrary weight, the result of Andrei Moroianu in [9] is generalized in the following sense. The only non-closed Weyl manifolds of dimension greater than 3 that admit solutions of the real Killing equation are 4-dimensional and non-compact. Any Weyl manifold of these dimensions admitting a real Killing spinor has to be Einstein-Weyl.

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