Search Results - subject:"Rosenstock's approximation"

Some exact results for the trapping of subdiffusive particles in one dimension

Yuste, S.B; Acedo, L - In: Physica A: Statistical Mechanics and its Applications 336 (2004) 3, pp. 334-346

We study a generalization of the standard trapping problem of random walk theory in which particles move subdiffusively on a one-dimensional lattice. We consider the cases in which the lattice is filled with a one-sided and a two-sided random distribution of static absorbing traps with...

Persistent link: https://www.econbiz.de/10011059868

Multiparticle trapping problem in the half-line

Yuste, Santos B.; Acedo, L. - In: Physica A: Statistical Mechanics and its Applications 297 (2001) 3, pp. 321-336

calculated by using the extended Rosenstock approximation. This requires the evaluation of the moments of the number SN(t) of … distinct sites visited in a given direction up to time t by N independent random walkers. The Rosenstock approximation improves …

Persistent link: https://www.econbiz.de/10011064485