Abstract
In this paper, we develop a convex splitting algorithm for the time-dependent Ginzburg-Landau equation, which can preserve both the energy stability and maximum bound principle. The basic idea of the convex splitting method is to decompose the energy functional into the convex part and the concave part. The term corresponding to the convex part of the equation is implicitly treated, and the concave part is explicitly processed. The backward Euler time discretizing method is chosen for the time-dependent Ginzburg-Landau equation. The theoretical analysis proves that the convex splitting method can preserve the maximum bound principle and energy stability. The numerical results show that the numerical algorithm is stable.
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Acknowledgements
The authors are very much indebted to the referees for their constructive suggestions and insightful comments, which greatly improved the original manuscript of this paper.
Funding
This work is supported by the National Natural Science Foundation of China (No. 11971152 & 12126318).
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YW: writing—original draft preparation, analysis.
ZS: methodology, software, reviewing.
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Wang, Y., Si, Z. A convex splitting method for the time-dependent Ginzburg-Landau equation. Numer Algor 96, 999–1017 (2024). https://doi.org/10.1007/s11075-023-01672-0
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DOI: https://doi.org/10.1007/s11075-023-01672-0