Abstract
We prove that in dimensions three and higher the Landau-Lifshitz-Gilbert equation with small initial data in the critical Besov space is globally well-posed in a uniform way with respect to the Gilbert damping parameter. Then we show that the global solution converges to that of the Schrödinger maps in the natural space as the Gilbert damping term vanishes. The proof is based on some studies on the derivative Ginzburg-Landau equations.
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Acknowledgements
This work was supported by Australian Research Council Discovery Project (Grant No. DP170101060), National Natural Science Foundation of China (Grant No. 11201498) and the China Scholarship Council (Grant No. 201606495010).
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Dedicated to the memory of Professor CHENG MinDe on the occasion of the centenary of his birth
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Guo, Z., Huang, C. The inviscid limit for the Landau-Lifshitz-Gilbert equation in the critical Besov space. Sci. China Math. 60, 2155–2172 (2017). https://doi.org/10.1007/s11425-017-9146-x
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DOI: https://doi.org/10.1007/s11425-017-9146-x