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Kwok Sau Fa

Researcher at Universidade Estadual de Maringá

Publications -  58
Citations -  662

Kwok Sau Fa is an academic researcher from Universidade Estadual de Maringá. The author has contributed to research in topics: Diffusion equation & Fokker–Planck equation. The author has an hindex of 13, co-authored 53 publications receiving 604 citations.

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Generalized Langevin equation with fractional derivative and long-time correlation function.

TL;DR: This work investigates the motion of a particle governed by a generalized Langevin equation with fractional derivative, nonlocal dissipative force, and long-time correlation function and derives general expressions for the variances with a linear external force.
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Fractional Langevin equation and Riemann-Liouville fractional derivative.

TL;DR: In this article, a fractional Langevin equation with Riemann-Liouville fractional time derivative is considered, which modifies the classical Newtonian force, nonlocal dissipative force, and long-time correlation.
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Power law diffusion coefficient and anomalous diffusion: analysis of solutions and first passage time.

TL;DR: It is shown that the system with the coefficient D(x) between the derivatives can produce different behaviors for the mean first passage time in comparison with those obtained by the systemwith the coefficient inside the derivatives.
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Anomalous diffusion, solutions, and first passage time: Influence of diffusion coefficient.

TL;DR: The solutions and the first passage time for anomalous diffusion processes governed by the usual diffusion equation are investigated and a space- and time-dependent diffusion coefficient and the presence of absorbing boundaries are considered.
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Anomalous diffusion: Fractional Fokker–Planck equation and its solutions

TL;DR: In this article, a linear fractional Fokker-Planck equation for the case of an external force F(x)∝x|x|α−1 and diffusion coefficient D(x),∝|x−θ (α,θ∈R).