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arXiv 1003.0666math.AP
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多边形区域上薛定谔方程的Schehartz估计

Strichartz estimates for the Schrödinger equation on polygonal domains

Matthew D. Blair, G. Austin Ford, Sebastian Herr, Jeremy L. Marzuola

摘要:

我们证明了多边形区域上的薛定谔方程在Dirichlet或Neumann齐次边界条件下的导数损失下的Schehartz估计。使用标准的加倍过程,估计多边形遵循那些在欧氏曲面上的圆锥奇点。我们开发了一个Littlewood-Paley平方函数估计的Laplacian在这些空间上的频谱。这使我们能够减少问题,以证明在每个频率尺度上的估计。只要时间间隔足够小,问题就可以局限于空间。Eschenhartz估计,然后遵循的结果,第二作者关于薛定谔方程的欧几里德锥。

英文摘要:

We prove Strichartz estimates with a loss of derivatives for the Schrödinger equation on polygonal domains with either Dirichlet or Neumann homogeneous boundary conditions. Using a standard doubling procedure, estimates the on polygon follow from those on Euclidean surfaces with conical singularities. We develop a Littlewood-Paley squarefunction estimate with respect to the spectrum of the Laplacian on these spaces. This allows us to reduce matters to proving estimates at each frequency scale. The problem can be localized in space provided the time intervals are sufficiently small. Strichartz estimates then follow from a result of the second author regarding the Schrödinger equation on the Euclidean cone.

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