Generalized SAV-exponential integrator schemes for Allen--Cahn type gradient flows

L Ju, X Li, Z Qiao - SIAM journal on numerical analysis, 2022 - SIAM
The energy dissipation law and the maximum bound principle (MBP) are two important
physical features of the well-known Allen--Cahn equation. While some commonly used first …

Stabilized integrating factor Runge--Kutta method and unconditional preservation of maximum bound principle

J Li, X Li, L Ju, X Feng - SIAM Journal on Scientific Computing, 2021 - SIAM
The maximum bound principle (MBP) is an important property for a large class of semilinear
parabolic equations, in the sense that the time-dependent solution of the equation with …

Numerical analysis of fully discretized Crank–Nicolson scheme for fractional-in-space Allen–Cahn equations

T Hou, T Tang, J Yang - Journal of Scientific Computing, 2017 - Springer
We consider numerical methods for solving the fractional-in-space Allen–Cahn equation
which contains small perturbation parameters and strong nonlinearity. A standard fully …

On second order semi-implicit Fourier spectral methods for 2D Cahn–Hilliard equations

D Li, Z Qiao - Journal of scientific computing, 2017 - Springer
We consider several seconder order in time stabilized semi-implicit Fourier spectral
schemes for 2D Cahn–Hilliard equations. We introduce new stabilization techniques and …

A second order BDF numerical scheme with variable steps for the Cahn--Hilliard equation

W Chen, X Wang, Y Yan, Z Zhang - SIAM Journal on Numerical Analysis, 2019 - SIAM
We present and analyze a second order in time variable step BDF2 numerical scheme for
the Cahn--Hilliard equation. The construction relies on a second order backward difference …

Maximum bound principle preserving integrating factor Runge–Kutta methods for semilinear parabolic equations

L Ju, X Li, Z Qiao, J Yang - Journal of Computational Physics, 2021 - Elsevier
A large class of semilinear parabolic equations satisfy the maximum bound principle (MBP)
in the sense that the time-dependent solution preserves for any time a uniform pointwise …

Characterizing the stabilization size for semi-implicit Fourier-spectral method to phase field equations

D Li, Z Qiao, T Tang - SIAM Journal on Numerical Analysis, 2016 - SIAM
Recent results in the literature provide computational evidence that the stabilized semi-
implicit time-stepping method can efficiently simulate phase field problems involving fourth …

Stabilized exponential-SAV schemes preserving energy dissipation law and maximum bound principle for the Allen–Cahn type equations

L Ju, X Li, Z Qiao - Journal of scientific computing, 2022 - Springer
It is well-known that the Allen–Cahn equation not only satisfies the energy dissipation law
but also possesses the maximum bound principle (MBP) in the sense that the absolute value …

Implicit-explicit scheme for the Allen-Cahn equation preserves the maximum principle

T Tang, J Yang - Journal of Computational Mathematics, 2016 - JSTOR
It is known that the Allen-Chan equations satisfy the maximum principle. Is this true for
numerical schemes? To the best of our knowledge, the state-of-art stability framework is the …

On the maximum principle preserving schemes for the generalized Allen–Cahn equation

J Shen, T Tang, J Yang - Communications in Mathematical Sciences, 2016 - intlpress.com
This paper is concerned with the generalized Allen–Cahn equation with a nonlinear mobility
that may be degenerate, which also includes an advection term appearing in many …