Alejandro F. Ram'irez

activity

20072009

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3 papers · 1 filter

math.PR2009

Asymptotic directions in random walks in random environment revisited

Alexander Drewitz, Alejandro F. Ramírez

Recently Simenhaus proved that for any elliptic random walk in random environment, transience in the neighborhood of a given direction is equivalent to the a.s. existence of a dete…

math.PR2008

Large Deviations of the Front in a one dimensional model of $X + Y \to 2 X$

Jean Bérard, Alejandro Ramírez

We investigate the probabilities of large deviations for the position of the front in a stochastic model of the reaction $X + Y \to 2 X$ on the integer lattice in which $Y$ particles…

math.PR2007

Central Limit Theorem for the Excited Random Walk in dimension $d \geq 2$

Jean Bérard, Alejandro Ramírez

We prove that a law of large numbers and a central limit theorem hold for the excited random walk model in every dimension $d \geq 2$ .

Asymptotic directions in random walks in random environment revisited

Large Deviations of the Front in a one dimensional model of X+Y→2X

Central Limit Theorem for the Excited Random Walk in dimension d≥2

Large Deviations of the Front in a one dimensional model of $X + Y \to 2 X$

Central Limit Theorem for the Excited Random Walk in dimension $d \geq 2$