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arXiv 0904.0372math.APmath.FA
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椭圆问题和Hörmander空间

Elliptic problems and Hörmander spaces

Vladimir A. Mikhailets, Aleksandr A. Murach

摘要:

本文综述了Hörmander函数空间上椭圆问题的现代结果。更准确地说,椭圆问题研究的Hilbert尺度上的各向同性Hörmander空间参数化的实数和函数缓慢变化在$+\infty$在Karamata意义上。这种细化尺度比Sobolev尺度更精细,并且相对于具有函数参数的插值是封闭的。椭圆算子和椭圆边值问题的Fredholm性质在此尺度下保持不变。研究了椭圆问题解的局部加细光滑性。本文给出了椭圆问题为Fredholm椭圆问题的函数空间类的抽象构造,特别地,给出了Lions-Magenes定理的一些推广。

英文摘要:

The paper gives a survey of the modern results on elliptic problems on the Hörmander function spaces. More precisely, elliptic problems are studied on a Hilbert scale of the isotropic Hörmander spaces parametrized by a real number and a function slowly varying at $+\infty$ in the Karamata sense. This refined scale is finer than the Sobolev scale and is closed with respect to the interpolation with a function parameter. The Fredholm property of elliptic operators and elliptic boundary-value problems is preserved for this scale. A local refined smoothness of the elliptic problem solution is studied. An abstract construction of classes of function spaces in which the elliptic problem is a Fredholm one is found. In particular, some generalizations of the Lions-Magenes theorems are given.

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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