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arXiv 1802.01564math.AP
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周期介质中非局部Ginzburg-Landau能量的类平面极小元和分数周长

Planelike minimizers of nonlocal Ginzburg-Landau energies and fractional perimeters in periodic media

Matteo Cozzi, Enrico Valdinoci

摘要:

在这里,我们考虑一个非局部的相变能量在周期性介质中,我们构造的解决方案,其接口位于从任何给定的超平面有界距离。这些解是周期的或准周期的,取决于法线方向对参考超平面的有理依赖性。值得注意的是,相对于参考超平面的界面的振荡是由一个普遍常数乘以介质的周期尺度所限定的。这种几何性质使我们能够在极限下证明周期结构中存在类平面非局部极小曲面。证明依赖于新的最优密度和能量估计。具体地说,粗略地说,相变最小化器的能量由一维过渡层的能量从上方和下方控制。

英文摘要:

We consider here a nonlocal phase transition energy in a periodic medium and we construct solutions whose interfaces lie at a bounded distance from any given hyperplane. These solutions are either periodic or quasiperiodic, depending on the rational dependency of the normal direction to the reference hyperplane. Remarkably, the oscillations of the interfaces with respect to the reference hyperplane are bounded by a universal constant times the periodicity scale of the medium. This geometric property allows us to establish, in the limit, the existence of planelike nonlocal minimal surfaces in a periodic structure. The proofs rely on new optimal density and energy estimates. In particular, roughly speaking, the energy of phase transition minimizers is controlled, both from above and below, by the energy of one-dimensional transition layers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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