Universit ́e du Qu ́ebec `a Montr ́eal (UQAM)
We study the elephant random walk in arbitrary dimension d1d\geq 1. Our main focus is the limiting random variable appearing in the superdiffusive regime. Building on a link between the elephant random walk and P\'olya-type urn models, we prove a fixed-point equation (or system in dimension two and larger) for the limiting variable. Based on this, we deduce several properties of the limit distribution, such as the existence of a density with support on $\mathbb R^dfor for d\in\{1,2,3\},andwebringevidenceforasimilarresultfor, and we bring evidence for a similar result for d\geq 4$. We also investigate the moment-generating function of the limit and give, in dimension 11, a non-linear recurrence relation for the moments.
There are no more papers matching your filters at the moment.