Doubling inequality at the boundary for the Kirchhoff-Love plate's equation with supported conditions

In this article we derive a doubling inequality at the boundary for solutions to the Kirchhoff-Love isotropic plate’s equation satisfying supported boundary conditions. To this end, we combine the use of a suitable conformal mapping which flattens the boundary and a reflection argument which guarantees the needed regularity of the extended solution. We finally apply inequalities of Carleman type in order to derive the result. The latter implies Strong Unique Continuation Property at the boundary (SUCPB). Mathematical Subject Classifications (2020): 35B60, 35J30, 74K20, 35R25, 35R30

[1]  L. Escauriaza,et al.  C1,? domains and unique continuation at the boundary , 1997 .

[2]  M. Di Cristo,et al.  Size estimates of unknown boundaries with a Robin-type condition , 2017, Proceedings of the Royal Society of Edinburgh: Section A Mathematics.

[3]  A. Morassi,et al.  DOUBLING INEQUALITY AT THE BOUNDARY FOR THE KIRCHHOFF-LOVE PLATE'S EQUATION WITH DIRICHLET CONDITIONS , 2019, 1906.08642.

[4]  Antonino Morassi,et al.  Optimal Stability in the Identification of a Rigid Inclusion in an Isotropic Kirchhoff-Love Plate , 2019, SIAM J. Math. Anal..

[5]  Antonino Morassi,et al.  Optimal identification of cavities in the Generalized Plane Stress problem in linear elasticity , 2021, Journal of the European Mathematical Society.

[6]  Eva Sincich,et al.  Stability for the Determination of Unknown Boundary and Impedance with a Robin Boundary Condition , 2010, SIAM J. Math. Anal..

[7]  N. Garofalo,et al.  Quantitative uniqueness for elliptic equations at the boundary of $C^{1, Dini}$ domains , 2016, 1605.02363.

[8]  S. Agmon Lectures on Elliptic Boundary Value Problems , 1965 .

[9]  Elena Beretta,et al.  Optimal stability for inverse elliptic boundary value problems with unknown boundaries , 2000 .

[10]  S. BRODETSKY,et al.  Theory of Plates and Shells , 1941, Nature.

[11]  A. Morassi,et al.  Size estimates for inclusions in an elastic plate by boundary measurements , 2007 .

[12]  G. Alessandrini,et al.  Optimal Three Spheres Inequality at the Boundary for the Kirchhoff–Love Plate’s Equation with Dirichlet Conditions , 2018, Archive for Rational Mechanics and Analysis.

[13]  K. Nyström,et al.  Unique continuation on the boundary for Dini domains , 1998 .