Titlebook: Asymptotic Methods for the Fokker-Planck Equation and the Exit Problem in Applications; Johan Grasman,Onno A. Herwaarden Book 1999 Springe

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Dispersive Groundwater Flow and Pollution pumping well. For the study of groundwater pollution it is not sufficient to model the transport of particles by advection only. In addition the mechanism of macroscopic dispersion has to be taken in consideration. It accounts for the random motion of individual particles in the flow. In this study

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Extinction in Systems of Interacting Biological Populationsimensional systems: a prey-predator system and the epidemiological problem of contact between infectives and susceptibles. The method we use is rather complex. It is for that reason that we do not expect that the method will be taken over by population biologists. In Sect. 7.3 we show how the proble