Zobrazeno 1 - 10
of 68 988
pro vyhledávání: '"Fokker-Planck equation"'
Autor:
Alloo, Samantha J., Paganin, David M., Croughan, Michelle K., Ahlers, Jannis N., Pavlov, Konstantin M., Morgan, Kaye S.
A key contribution to X-ray dark-field (XDF) is X-ray diffusion by sample structures smaller than the imaging system's spatial resolution. However, some XDF techniques report that resolvable sample edges also generate XDF. Speckle-based X-ray imaging
Externí odkaz:
http://arxiv.org/abs/2410.18317
This paper introduces a comprehensive extension of the path integral formalism to model stochastic processes with arbitrary multiplicative noise. To do so, It\^o diffusive process is generalized by incorporating a multiplicative noise term $(\eta(t))
Externí odkaz:
http://arxiv.org/abs/2410.01387
A numerical scheme for approximating the nonlinear filtering density is introduced and its convergence rate is established, theoretically under a parabolic H\"{o}rmander condition, and empirically for two examples. For the prediction step, between th
Externí odkaz:
http://arxiv.org/abs/2409.14585
Optimal control theory aims to find an optimal protocol to steer a system between assigned boundary conditions while minimizing a given cost functional in finite time. Equations arising from these types of problems are often non-linear and difficult
Externí odkaz:
http://arxiv.org/abs/2411.08518
We analyse a generalised Fokker-Planck equation by making essential use of its linearisability through a Cole-Hopf transformation. We determine solutions of travelling wave and multi-kink type by resorting to a geometric construction in the regime of
Externí odkaz:
http://arxiv.org/abs/2410.21852
We propose a fully discrete finite volume scheme for the standard Fokker-Planck equation. The space discretization relies on the well-known square-root approximation, which falls into the framework of two-point flux approximations. Our time discretiz
Externí odkaz:
http://arxiv.org/abs/2410.03367
Using an original method, we find the algebra of generalized symmetries of a remarkable (1+2)-dimensional ultraparabolic Fokker-Planck equation, which is also called the Kolmogorov equation and is singled out within the entire class of ultraparabolic
Externí odkaz:
http://arxiv.org/abs/2409.10348
Autor:
Broggi, Luca
In this letter, we present a new formulation of loss cone theory as a reaction-diffusion system, which is orbit averaged and accounts for loss cone events through a sink term. This formulation can recover the standard approach based on boundary condi
Externí odkaz:
http://arxiv.org/abs/2411.04178