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arXiv 1601.01907math.AP
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关于nonlinear elliptic系统和线性增长的变分问题可积解的存在性

On the existence of integrable solutions to nonlinear elliptic systems and variational problems with linear growth

Lisa Beck, Miroslav Bulíček, Josef Málek, Endre Süli

摘要:

我们研究了某些椭圆系统的性质,导致,先验,解决方案属于空间的Radon措施。我们证明,如果问题具有所谓的渐近Uhlenbeck结构,则解实际上可以被理解为标准弱解,但有一个条件:类似于在极小曲面方程的情况下,边界值的达到受到支持于边界(的子集),对于这里考虑的这类问题,边界是施加Neumann边界条件的边界的一部分。

英文摘要:

We investigate the properties of certain elliptic systems leading, a~priori, to solutions that belong to the space of Radon measures. We show that if the problem is equipped with a so-called asymptotic Uhlenbeck structure, then the solution can in fact be understood as a standard weak solution, with one proviso: analogously as in the case of minimal surface equations, the attainment of the boundary value is penalized by a measure supported on (a subset of) the boundary, which, for the class of problems under consideration here, is the part of the boundary where a Neumann boundary condition is imposed.

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