Stochastic Wave Equations Defined by Fractal Laplacians on Cantor-Like Sets

被引:0
|
作者
Ehnes, Tim [1 ]
机构
[1] Univ Stuttgart, Inst Stochast & Applicat, Pfaffenwaldring 57, D-70569 Stuttgart, Germany
关键词
Stochastic wave equation; space-time white noise; Cantor set; Holder continuity; intermittency; MEASURE GEOMETRIC LAPLACIANS; KREIN-FELLER-OPERATORS; SPECTRAL ASYMPTOTICS; EIGENFUNCTIONS; INTERMITTENCY;
D O I
10.4171/PRIMS/58-4-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study stochastic wave equations in the sense of Walsh defined by fractal Laplacians on Cantor-like sets. For this purpose, we give an improved estimate on the uniform norm of eigenfunctions and approximate the wave propagator using the resolvent density. Afterwards, we establish existence and uniqueness of mild solutions to stochastic wave equations provided some Lipschitz and linear growth conditions. We prove H<spacing diaeresis>older continuity in space and time and compute the Holder exponents. Moreover, we are concerned with the phenomenon of weak intermittency.
引用
收藏
页码:713 / 755
页数:43
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