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arXiv 1609.06259math.DG
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Poincaré-Einstein流形上散射算子的正性

On the positivity of scattering operators for Poincaré-Einstein manifolds

Fang Wang

摘要:

本文主要研究Poincaré-Einstein流形上的散射算子。这些算子给出了共形无穷远域的分数GJMS算子$P_{2γ}$。若Poincaré-Einstein流形$(X^{n+1}, g_+)$是局部共形平坦的,且存在共形无穷$(M, [g])$的代表$g$,使得数量曲率$R$为正常数,且$Q_4>0$为正,则证明了$P_{2γ}$对$γ\in (1,2)$为正,从而第一实散射极小于$\frac{n}{2}-2$ .

英文摘要:

In this paper, we mainly study the scattering operators for the Poincaré-Einstein manifolds. Those operators give the fractional GJMS operators $P_{2γ}$ for the conformal infinity. If a Poincaré-Einstein manifolds $(X^{n+1}, g_+)$ is locally conformally flat and there exists an representative $g$ for the conformal infinity $(M, [g])$ such that the scalar curvature $R$ is a positive constant and $Q_4>0$, then we prove that $P_{2γ}$ is positive for $γ\in (1,2)$ and thus the first real scattering pole is less than $\frac{n}{2}-2$.

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