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arXiv 1709.05040math.AP
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带奇异权的加权渐近Korn不等式和插值Korn不等式

Weighted asymptotic Korn and interpolation Korn inequalities with singular weights

Davit Harutyunyan, Hayk Mikayelyan

摘要:

在这篇工作中,我们得到了渐近尖锐的加权Korn和Korn-like插值(或一个半)不等式在薄域奇异权。不等式中的常数$K$(科恩常数)根据幂律$K=Ch^α,$取决于畴厚度$h$,其中$C>0$和$α\in R$是与$h$和位移场无关的常数。估计的锐度被理解为渐近$h^α$是最佳的,因为$h\to 0.$。权重的选择是由几个因素激发的,特别是空间的情况下发生时,使笛卡尔极变量变换在两个维度。

英文摘要:

In this work we derive asymptotically sharp weighted Korn and Korn-like interpolation (or first and a half) inequalities in thin domains with singular weights. The constants $K$ (Korn's constant) in the inequalities depend on the domain thickness $h$ according to a power rule $K=Ch^α,$ where $C>0$ and $α\in R$ are constants independent of $h$ and the displacement field. The sharpness of the estimates is understood in the sense that the asymptotics $h^α$ is optimal as $h\to 0.$ The choice of the weights is motivated by several factors, in particular a spacial case occurs when making Cartesian to polar change of variables in two dimensions.

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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