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An Energy Stable and Convergent Finite-Difference Scheme for the Modified Phase Field Crystal Equation

Published: 01 May 2011 Publication History

Abstract

We present an unconditionally energy stable finite difference scheme for the Modified Phase Field Crystal equation, a generalized damped wave equation for which the usual Phase Field Crystal equation is a special degenerate case. The method is based on a convex splitting of a discrete pseudoenergy and is semi-implicit. The equation at the implicit time level is nonlinear but represents the gradient of a strictly convex function and is thus uniquely solvable, regardless of time step-size. We present a local-in-time error estimate that ensures the pointwise convergence of the scheme.

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  1. An Energy Stable and Convergent Finite-Difference Scheme for the Modified Phase Field Crystal Equation

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    Published In

    cover image SIAM Journal on Numerical Analysis
    SIAM Journal on Numerical Analysis  Volume 49, Issue 3
    May 2011
    403 pages

    Publisher

    Society for Industrial and Applied Mathematics

    United States

    Publication History

    Published: 01 May 2011

    Author Tags

    1. Modified Phase Field Crystal
    2. Phase Field Crystal
    3. finite-difference methods
    4. nonlinear partial differential equations
    5. stability

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    • (2024)Stability and error estimates of GPAV-based unconditionally energy-stable scheme for phase field crystal equationComputers & Mathematics with Applications10.1016/j.camwa.2023.10.029151:C(461-472)Online publication date: 1-Feb-2024
    • (2024)Energetic spectral-element time marching methods for phase-field nonlinear gradient systemsApplied Numerical Mathematics10.1016/j.apnum.2024.06.021205:C(38-59)Online publication date: 1-Nov-2024
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