arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1502.04965gr-qcmath-phmath.APmath.MP
收藏

anti-de Sitter空间中线性场方程的渐近性质

Asymptotic properties of linear field equations in anti-de Sitter space

Gustav Holzegel, Jonathan Luk, Jacques Smulevici, Claude Warnick

摘要:

我们研究了在反德西特背景下波动方程、麦克斯韦方程和线性化的Bianchi方程的整体动力学。所提供的耗散边界条件施加的动力场,我们证明了统一的自然能量的有界性,以及退化(附近的AdS边界)和非退化的综合衰减估计。值得注意的是,非退化估计“失去了一个导数”。我们将这种损失与AdS边界附近的捕获现象有关,该捕获现象本身源于边界附近的(近似)滑动射线的性质。利用高斯光束近似,我们证明了不损失导数的非简并能量衰减不成立。由于非退化的综合衰变估计,我们也得到逐点的能量衰减估计。本文给出了反德西特时空在耗散边界条件下的非线性稳定性证明的关键估计。最后,将所得结果与反射边界条件下的结果进行了对比.

英文摘要:

We study the global dynamics of the wave equation, Maxwell's equation and the linearized Bianchi equations on a fixed anti-de Sitter (AdS) background. Provided dissipative boundary conditions are imposed on the dynamical fields we prove uniform boundedness of the natural energy as well as both degenerate (near the AdS boundary) and non-degenerate integrated decay estimates. Remarkably, the non-degenerate estimates "lose a derivative". We relate this loss to a trapping phenomenon near the AdS boundary, which itself originates from the properties of (approximately) gliding rays near the boundary. Using the Gaussian beam approximation we prove that non-degenerate energy decay without loss of derivatives does not hold. As a consequence of the non-degenerate integrated decay estimates, we also obtain pointwise-in-time decay estimates for the energy. Our paper provides the key estimates for a proof of the non-linear stability of the anti-de Sitter spacetime under dissipative boundary conditions. Finally, we contrast our results with the case of reflecting boundary conditions.

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。

↑