A doubly splitting scheme for the Caginalp system with singular potentials and dynamic boundary conditions
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Bibliographic record
Abstract
<p style="text-indent:20px;">We propose a time semi-discrete scheme for the Caginalp phase-field system with singular potentials and dynamic boundary conditions. The scheme is based on a time splitting which decouples the equations and on a convex splitting of the energy associated to the problem. The scheme is unconditionally uniquely solvable and the energy is nonincreasing if the time step is small enough. The discrete solution is shown to converge to the energy solution of the problem as the time step tends to <inline-formula><tex-math id="M1">\begin{document}$ 0 $\end{document}</tex-math></inline-formula>. The proof involves a multivalued operator and a monotonicity argument. This approach allows us to compute numerically singular solutions to the problem.
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