arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0707.3370math.AP
收藏

非紧流形上径向薛定谔方程的加权Schehartz估计

Weighted Strichartz estimates for radial Schrödinger equation on noncompact manifolds

Valeria Banica, Thomas Duyckaerts

摘要:

证明了一类旋转对称非紧流形上线性薛定谔方程径向解的整体加权Schihartz估计,推广了双曲空间和Damek-Ricci空间上的已知结果.这产生了经典的Eschenhartz估计与一个更大的类的指数比在欧几里德的情况下和改进的散射理论。流形,其体积元在无穷远处多项式或指数增长,其特征在于基本上由负的曲率条件,这表明,特别是丰富的代数结构的双曲和Damek-Ricci空间是不是改善色散性质的方程。这些证明是基于欧几里得空间上势方程的已知色散结果,以及一个新的结果,该结果对无穷远处衰减为1/r^2的C^1势有效。

英文摘要:

We prove global weighted Strichartz estimates for radial solutions of linear Schrödinger equation on a class of rotationally symmetric noncompact manifolds, generalizing the known results on hyperbolic and Damek-Ricci spaces. This yields classical Strichartz estimates with a larger class of exponents than in the Euclidian case and improvements for the scattering theory. The manifolds, whose volume element grows polynomially or exponentially at infinity, are characterized essentially by negativity conditions on the curvature, which shows in particular that the rich algebraic structure of the Hyperbolic and Damek-Ricci spaces is not the cause of the improved dispersive properties of the equation. The proofs are based on known dispersive results for the equation with potential on the Euclidean space, and on a new one, valid for C^1 potentials decaying like 1/r^2 at infinity.

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。

↑