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arXiv 1302.2661math.APmath.DGmath.FA
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Korn第一不等式在任意维域上不相容张量场上的推广

On an Extension of Korn's First Inequality to Incompatible Tensor Fields on Domains of Arbitrary Dimensions

Patrizio Neff, Dirk Pauly, Karl-Josef Witsch

摘要:

对于具有Lipschitz边界的有界N维区域,我们将Korn第一不等式推广到不相容张量场。对于相容的张量场,我们的估计减少到一个非标准的变种,著名的科恩的第一不等式。另一方面,对于斜称张量场,我们的新估计变成了庞加莱不等式。因此,我们的结果可以看作是Korn第一不等式和Poincare不等式的自然的共同推广。决定性的工具,这个意想不到的估计是经典的科恩的第一不等式,亥姆霍兹分解的混合边界条件和麦克斯韦估计。

英文摘要:

For a bounded N-dimensional domain with Lipschitz boundary we extend Korn's first inequality to incompatible tensor fields. For compatible tensor fields our estimate reduces to a non-standard variant of the well known Korn's first inequality. On the other hand, for skew-symmetric tensor fields our new estimate turns to Poincare's inequality. Therefore, our result may be viewed as a natural common generalization of Korn's first and Poincare's inequality. Decisive tools for this unexpected estimate are the classical Korn's first inequality, Helmholtz decompositions for mixed boundary conditions and the Maxwell estimate.

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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