Crank–Nicolson Fourier spectral methods for the space fractional nonlinear Schrödinger equation and its parameter estimation

H Zhang, X Jiang, C Wang, S Chen - International Journal of …, 2019 - Taylor & Francis
In this paper, the Crank–Nicolson Fourier spectral approximations for solving the space
fractional nonlinear Schrödinger equation are proposed. Firstly, the numerical formats of the …

Energy stable numerical schemes for the fractional-in-space Cahn–Hilliard equation

L Bu, L Mei, Y Wang, Y Hou - Applied Numerical Mathematics, 2020 - Elsevier
In this paper, a number of energy stable numerical schemes are proposed for the fractional
Cahn–Hilliard equation. We prove mass conservation, unique solvability and energy stability …

A fast Galerkin finite element method for a space–time fractional Allen–Cahn equation

H Liu, A Cheng, H Wang - Journal of Computational and Applied …, 2020 - Elsevier
In this paper, a space–time fractional Allen–Cahn equation is investigated to account for the
memory effect of certain materials or the anomalous diffusion processes in heterogeneous …

Numerical approximation of the fractional Cahn-Hilliard equation by operator splitting method

S Zhai, L Wu, J Wang, Z Weng - Numerical Algorithms, 2020 - Springer
In this paper, we consider a fast explicit operator splitting method for a fractional Cahn-
Hilliard equation with spatial derivative (− Δ) α 2 (-\varDelta)^α2 (α∈(1, 2), where the choice …

Numerical Simulation of a Space-Fractional Molecular Beam Epitaxy Model without Slope Selection

HG Lee - Fractal and Fractional, 2023 - mdpi.com
In this paper, we introduce a space-fractional version of the molecular beam epitaxy (MBE)
model without slope selection to describe super-diffusion in the model. Compared to the …

On efficient semi-implicit auxiliary variable methods for the six-order Swift–Hohenberg model

Z Liu, C Chen - Journal of Computational and Applied Mathematics, 2023 - Elsevier
Abstract The Swift–Hohenberg model is a very important phase field crystal model which
can describe many crystal phenomena. This model with quadratic–cubic nonlinearity based …

Analysis of the operator splitting scheme for the Cahn‐Hilliard equation with a viscosity term

Z Weng, S Zhai, X Feng - Numerical Methods for Partial …, 2019 - Wiley Online Library
In this paper, we consider a second‐order fast explicit operator splitting method for the
viscous Cahn‐Hilliard equation, which includes a viscosity term αΔut (α∈(0, 1)) described …

Convergence of substructuring methods for the Cahn–Hilliard equation

G Garai, BC Mandal - … in Nonlinear Science and Numerical Simulation, 2023 - Elsevier
In this paper, we propose and study non-overlapping substructuring type algorithms for the
Cahn–Hilliard (CH) equation, which was originally proposed to describe the phase …

Energy dissipation and evolutions of the nonlocal Cahn-Hilliard model and space fractional variants using efficient variable-step BDF2 method

Z Xue, S Zhai, X Zhao - Journal of Computational Physics, 2024 - Elsevier
In this work, an energy stable BDF2 scheme with general nonuniform time steps is
developed for the nonlocal Cahn-Hilliard model to capture the multi-scale behavior of …

Novel energy stable schemes for Swift-Hohenberg model with quadratic-cubic nonlinearity based on the H−1-gradient flow approach

Z Liu - Numerical Algorithms, 2021 - Springer
Abstract The Swift-Hohenberg model is a very important phase field crystal model which can
be described many crystal phenomena. This model with quadratic-cubic nonlinearity based …