arXiv · 1111.4593
There exists a graph with two vertices x and y such that the ratio of the heat kernels p(x,x;t)/p(y,y;t) does not converge as t goes to infinity.
Gady Kozma. 2011-11-19. A graph counterexample to davies' conjecture. https://arxiv.org/abs/1111.4593
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