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arXiv 1808.02178math.PR
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具有类稳定跳跃的随机电导模型:热核估计和Harnack不等式

Random conductance models with stable-like jumps: heat kernel estimates and Harnack inequalities

Xin Chen, Takashi Kumagai, Jian Wang

摘要:

建立了图上具有非一致椭圆(可能退化)类稳定跳跃的随机电导模型的双边热核估计。这些是由M.T.超临界渗流团簇上最近邻(短程)随机游动的Barlow方法。与最近邻电导模型的情况不同,通过抛物型Harnack不等式的想法不起作用,因为即使椭圆Harnack不等式也不成立。作为应用,我们建立了模型的局部极限定理。

英文摘要:

We establish two-sided heat kernel estimates for random conductance models with non-uniformly elliptic (possibly degenerate) stable-like jumps on graphs. These are long range counterparts of well known two-sided Gaussian heat kernel estimates by M.T. Barlow for nearest neighbor (short range) random walks on the supercritical percolation cluster. Unlike the cases for nearest neighbor conductance models, the idea through parabolic Harnack inequalities does not work, since even elliptic Harnack inequalities do not hold in the present setting. As an application, we establish the local limit theorem for the models.

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