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pro vyhledávání: '"Araujo Jr, Francisco Fontenele"'
We review recent studies demonstrating a nonuniversal (continuously variable) survival exponent for history-dependent random walks, and analyze a new example, the hard movable partial reflector. These processes serve as a simplified models of infecti
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304292
Publikováno v:
Phys. Rev. E 66, 051102 (2002)
We study an unbiased, discrete time random walk on the nonnegative integers, with the origin absorbing. The process has a history-dependent step length: the walker takes steps of length v while in a region which has been visited before, and steps of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0206281