Abstract
We study a generalized Landau‐Lifshitz (LL) equation with space‐variable coefficients. We extend the results on existence and regularity of the smooth solutions for the case of the LL equation with constant coefficients. Further we study the sensitivity of the solution and provide continuous dependence on the coefficients. As a motivation we mention optimization of a magnetic core of MRAM and we perform real computations determining the optimal shape by maximizing the writing efficiency and minimizing the side‐effects.

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