Fractional Cahn–Hilliard, Allen–Cahn and porous medium equations

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書誌事項

公開日
2016-09
資源種別
journal article
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
  • http://www.elsevier.com/open-access/userlicense/1.0/
DOI
  • 10.1016/j.jde.2016.05.016
  • 10.48550/arxiv.1502.06383
公開者
Elsevier BV

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説明

We introduce a fractional variant of the Cahn-Hilliard equation settled in a bounded domain $��$ of $R^N$ and complemented with homogeneous Dirichlet boundary conditions of solid type (i.e., imposed in the entire complement of $��$). After setting a proper functional framework, we prove existence and uniqueness of weak solutions to the related initial-boundary value problem. Then, we investigate some significant singular limits obtained as the order of either of the fractional Laplacians appearing in the equation is let tend to 0. In particular, we can rigorously prove that the fractional Allen-Cahn, fractional porous medium, and fractional fast-diffusion equations can be obtained in the limit. Finally, in the last part of the paper, we discuss existence and qualitative properties of stationary solutions of our problem and of its singular limits.

33 pages

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