What is the fractional Laplacian? A comparative review with new results

A Lischke, G Pang, M Gulian, F Song, C Glusa… - Journal of …, 2020 - Elsevier
The fractional Laplacian in R d, which we write as (− Δ) α/2 with α∈(0, 2), has multiple
equivalent characterizations. Moreover, in bounded domains, boundary conditions must be …

The phase field method for geometric moving interfaces and their numerical approximations

Q Du, X Feng - Handbook of numerical analysis, 2020 - Elsevier
This chapter surveys recent numerical advances in the phase field method for geometric
surface evolution and related geometric nonlinear partial differential equations (PDEs) …

On energy dissipation theory and numerical stability for time-fractional phase-field equations

T Tang, H Yu, T Zhou - SIAM Journal on Scientific Computing, 2019 - SIAM
For the time-fractional phase-field models, the corresponding energy dissipation law has not
been well studied on both the continuous and the discrete levels. In this work, we address …

Analysis and approximation of a fractional Cahn--Hilliard equation

M Ainsworth, Z Mao - SIAM Journal on Numerical Analysis, 2017 - SIAM
We derive a fractional Cahn--Hilliard equation (FCHE) by considering a gradient flow in the
negative order Sobolev space H^-α, α∈0,1, where the choice α=1 corresponds to the …

Time-fractional Allen–Cahn and Cahn–Hilliard phase-field models and their numerical investigation

H Liu, A Cheng, H Wang, J Zhao - Computers & Mathematics with …, 2018 - Elsevier
We study (time) fractional Allen–Cahn and Cahn–Hilliard phase-field models to account for
the anomalously subdiffusive transport behavior in heterogeneous porous materials or …

Time-fractional Allen–Cahn equations: analysis and numerical methods

Q Du, J Yang, Z Zhou - Journal of Scientific Computing, 2020 - Springer
In this work, we consider a time-fractional Allen–Cahn equation, where the conventional first
order time derivative is replaced by a Caputo fractional derivative with order α ∈ (0, 1) …

On the initial value problem for a class of nonlinear biharmonic equation with time-fractional derivative

AT Nguyen, T Caraballo, NH Tuan - Proceedings of the Royal Society …, 2022 - cambridge.org
In this study, we investigate the intial value problem (IVP) for a time-fractional fourth-order
equation with nonlinear source terms. More specifically, we consider the time-fractional …

What is the fractional Laplacian?

A Lischke, G Pang, M Gulian, F Song, C Glusa… - arXiv preprint arXiv …, 2018 - arxiv.org
The fractional Laplacian in R^ d has multiple equivalent characterizations. Moreover, in
bounded domains, boundary conditions must be incorporated in these characterizations in …

Numerical analysis and applications of explicit high order maximum principle preserving integrating factor Runge-Kutta schemes for Allen-Cahn equation

H Zhang, J Yan, X Qian, S Song - Applied Numerical Mathematics, 2021 - Elsevier
Whether high order temporal integrators can preserve the maximum principle of Allen-Cahn
equation has been an open problem in recent years. This work provides a positive answer …

Compatible Energy Dissipation of the Variable-Step Scheme for the Space-Time Fractional Cahn-Hilliard Equation

Z Xue, X Zhao - SIAM Journal on Scientific Computing, 2023 - SIAM
We construct and analyze the variable-step scheme to efficiently solve the space-time
fractional Cahn–Hilliard equation in two dimensions. The associated variational energy …