Nomadic
发表于 2025-3-27 00:10:29
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遵循的规范
发表于 2025-3-27 01:25:00
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旧石器时代
发表于 2025-3-27 07:39:05
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极大的痛苦
发表于 2025-3-27 11:18:14
J. W. Bakker,W. P. Roever,G. Rozenberg 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
Protein
发表于 2025-3-27 15:47:09
Essentials of Object-Oriented Programming,imensional 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
Pandemic
发表于 2025-3-27 20:52:25
Essentials of Object-Oriented Programming,resents the “ideal” state of the system. Due to the stochastic perturbations the system fluctuates about this equilibrium state. In order to quantify the functioning of the system we introduce concepts as confidence domain and return time. A confidence domain in state space is a bounded domain conta
指数
发表于 2025-3-27 23:22:09
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cocoon
发表于 2025-3-28 02:20:27
Dynamical Systems Perturbed by Noise: the Langevin Equation in different fields of applications, such as in stochastic mechanics and in the dynamics of biological populations. Depending on the application, the noise may have quite different origins. Outside fluctuations affecting a physical system can be incorporated in the modelling in the form of a stocha
惊奇
发表于 2025-3-28 06:46:11
Singular Perturbation Analysis of the Differential Equations for the Exit Probability and Exit Time ation method. However, in some of these problems the standard method fails and we have to introduce more refined methods such as the WKB-method or a variational approach. Of course we may as well produce an exact solution and make an asymptotic approximation with the Laplace method applied to this e
enumaerate
发表于 2025-3-28 11:54:04
The Fokker—Planck Equation in Several Dimensions: the Asymptotic Exit Probleming. The situation that a part of the boundary is reflecting or not attainable will arise in some special problems. The case that both the drift and normal component of the diffusion vanish at the boundary will be examined in Chap. 7. The latter is of special importance in the field of stochastic dy