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Aging and its Distribution in Coarsening Processes
L. Frachebourg, P. L. Krapivsky, S. Redner
We investigate the age distribution function P(tau,t) in prototypical one-dimensional coarsening processes. Here P(tau,t) is the probability density that in a time interval (0,t) a…
Two-Scale Annihilation
E. Ben-Naim, S. Redner, P. L. Krapivsky
The kinetics of single-species annihilation, , is investigated in which each particle has a fixed velocity which may be either with equal probability, and a finit…
Kinetics of a Diffusive Capture Process: Lamb Besieged by a Pride of Lions
P. L. Krapivsky, S. Redner
The survival probability, S_N(t), of a diffusing prey (``lamb'') in the proximity of N diffusing predators (a ``pride of lions'') in one dimension is investigated. When the lions a…
Borderline Aggregation Kinetics in ``Dry'' and ``Wet'' Environments
Paul. L. Krapivsky, Sidney Redner
We investigate the kinetics of constant-kernel aggregation which is augmented by either: (a) evaporation of monomers from finite-mass clusters, or (b) continuous cluster growth --…
Heterogeneous Catalysis on a Disordered Surface
L. Frachebourg, P. L. Krapivsky, S. Redner
We introduce a simple model of heterogeneous catalysis on a disordered surface which consists of two types of randomly distributed sites with different adsorption rates. Disorder c…
Life and Death at the Edge of a Windy Cliff
S. Redner, P. L. Krapivsky
The survival probability of a particle diffusing in the two dimensional domain near a ``windy cliff'' at is investigated. The particle dies upon reaching the edge of th…