一类P.C.F.上波解的无限传播速度分形
Infinite Propagation Speed For Wave Solutions on Some P.C.F. Fractals
摘要:
本文从波方程的有限差分法出发,分形,我们会期望无限传播速度性质的波解上的一大类p.c.f.分形我们证明,是真的,如果热核满足亚高斯下界。此外,我们提供了一个次高斯上界波核给定的热核次高斯上界。
英文摘要:
From the finite difference method for wave equation on p.c.f. fractals, we would expect that infinite prorogation speed property for wave solutions on a large class of p.c.f. fractals. We prove that is true if the heat kernel satisfies the sub-Gaussian lower bound. Furthermore, we provide a sub-Gaussian upper bound for wave kernel given the heat kernel sub-Gaussian upper bound.
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