Abstract
This is in the sequel of authors’ paper [Lin, F. H., Pan, X. B. and Wang, C. Y., Phase transition for potentials of high dimensional wells, Comm. Pure Appl. Math., 65(6), 2012, 833-888] in which the authors had set up a program to verify rigorously some formal statements associated with the multiple component phase transitions with higher dimensional wells. The main goal here is to establish a regularity theory for minimizing maps with a rather non-standard boundary condition at the sharp interface of the transition. The authors also present a proof, under simplified geometric assumptions, of existence of local smooth gradient flows under such constraints on interfaces which are in the motion by the mean-curvature. In a forthcoming paper, a general theory for such gradient flows and its relation to Keller-Rubinstein-Sternberg’s work (in 1989) on the fast reaction, slow diffusion and motion by the mean curvature would be addressed.
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Dedicated to Professor Andrew J. Majda with deep admiration
This work was supported by NSF Grants DMS-1501000, DMS-1764417.
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Lin, F., Wang, C. Harmonic Maps in Connection of Phase Transitions with Higher Dimensional Potential Wells. Chin. Ann. Math. Ser. B 40, 781–810 (2019). https://doi.org/10.1007/s11401-019-0160-6
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DOI: https://doi.org/10.1007/s11401-019-0160-6
Keywords
- Partially free and partially constrained boundary
- Boundary partial regularity
- Boundary monotonicity inequality