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Title: Multi-interior-spike solutions for the Cahn-Hilliard equation with arbitrarily many peaks
Authors: Winter, M
Wei, J
Keywords: Nonlinear elliptic equations;Phase transition
Issue Date: 2000
Publisher: Springer
Citation: Calc Var Partial Differential Equations 10: 249-289
Abstract: We study the Cahn-Hilliard equation in a bounded smooth domain without any symmetry assumptions. We prove that for any fixed positive integer K there exist interior $K$--spike solutions whose peaks have maximal possible distance from the boundary and from one another. This implies that for any bounded and smooth domain there exist interior K-peak solutions. The central ingredient of our analysis is the novel derivation and exploitation of a reduction of the energy to finite dimensions (Lemma 5.5) with variables which are closely related to the location of the peaks. We do not assume nondegeneracy of the points of maximal distance to the boundary but can do with a global condition instead which in many cases is weaker.
Appears in Collections:Dept of Mathematics Research Papers
Mathematical Sciences

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