Yan Gui

High-Order Energy-Decreasing IMEX Runge-Kutta Generalized Scalar Auxiliary Variable Methods for Landau-Lifshitz Equation

The Landau-Lifshitz equation is a fundamental model in micromagnetics, whose nonlinear geometric structure arising from the pointwise unit-length constraint makes the construction of stable and accurate numerical schemes particularly challenging. In this work, we develop and analyze a class of extrapolated and lineariz...