TY - JOUR T1 - Explicit H1-Estimate for the Solution of the Lamé System with Mixed Boundary Conditions AU - Ait-Akli , Djamel AU - Merakeb , Abdelkader JO - Journal of Partial Differential Equations VL - 1 SP - 64 EP - 92 PY - 2020 DA - 2020/03 SN - 33 DO - http://doi.org/10.4208/jpde.v33.n1.5 UR - https://global-sci.org/intro/article_detail/jpde/15804.html KW - Lamé system, Korn's inequality, Poincare's inequality, inequality of trace, explicit estimates. AB -
In this paper we consider the Lamé system on a polygonal convex domain with mixed boundary conditions of Dirichlet-Neumann type. An explicit $L^2$ norm estimate for the gradient of the solution of this problem is established. This leads to an explicit bound of the $H^1$ norm of this solution. Note that the obtained upper-bound is not optimal.