On the Korn Interpolation and Second Inequalities in Thin Domains
On the Korn Interpolation and Second Inequalities in Thin Domains
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关于薄域中的 Korn 插值和二阶不等式
DOI:
10.1137/18m1167474
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
D. Harutyunyan
中科院分区:
文献类型:
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作者:
D. Harutyunyan
We consider shells of nonconstant thickness in three dimensional Euclidean space around surfaces which have bounded principal curvatures. We derive Korn's interpolation inequality (or the so-called first (and a half) inequality introduced in [Y. Grabovsky and D. Harutyunyan, SIAM J. Math. Anal., 46 (2014), pp. 3277--3295]) and Korn's second inequality on such domains for $\bm{u}\in H^1$ vector fields, imposing no boundary or normalization conditions on $\bm{u}$. The constants in the estimates are asymptotically optimal in terms of the domain thickness $h$, with the leading order constant having the scaling $h$ as $h\to0$. This is the first work that determines the asymptotics of the optimal constant in the classical Korn second inequality for shells in terms of the domain thickness in almost full generality, the inequality being fulfilled for practically all thin domains $\Omega\in\mathbb{R}^3$ and all vector fields $\bm{u}\in H^1(\Omega)$. Moreover, Korn's interpolation inequality is stronger than Korn's...
DOI:
10.1016/j.anihpc.2017.04.004
发表时间:
2018
期刊:
Annales de l'Institut Henri Poincare (C
影响因子:
--
作者:
Grabovsky, Yury;Harutyunyan, Davit
通讯作者:
Harutyunyan, Davit
DOI:
10.1016/j.matpur.2018.04.008
发表时间:
2018
期刊:
Journal de Mathématiques Pures et Appliquées
影响因子:
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作者:
Peter Hornung;Igor Velčić
通讯作者:
Igor Velčić