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Spectral gap for diffusion processes on noncompact manifolds

机译:非紧凑流形上扩散过程的光谱间隙

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摘要

Obviously, gap(L) is always positive for compact M. Actually, many detailed lower bounds of gap(L) were already obtained in refs. [1—3], Recently, the same topic was also studied by Chen and Wang in the context of multidimensional diffusion processes. In the present note, the main problem we are concerned with is: when does a spectral gap inequality hold for noncompact M?
机译:显然,gap M的gap(L)始终为正。实际上,refs中已经获得了很多gap(L)的详细下界。 [1–3],最近,Chen和Wang在多维扩散过程的背景下也研究了同一主题。在本说明中,我们关注的主要问题是:什么时候非紧致M的谱隙不等式成立?

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