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D. Chakraborty 《The European Physical Journal B - Condensed Matter and Complex Systems》2008,64(2):263-269
We consider a class of inhomogeneous media known as composite media that is often encountered in experimental sciences, and
investigate the persistence probability of a random walker in such a system. Analytical and numerical results for the crossover
time scales are obtained for a composite system with two homogeneous components and three homogeneous components respectively. 相似文献