Otar Chkadua and Roland Duduchava

Asymptotics of Solutions to Some Boundary Value Problems of Elasticity for Bodies with Cuspidal Edges

abstract:
The main purpose of the paper is to obtain complete asymptotic expansion of solutions to boundary value problems of elasticity of Dirichlet, Neumann and mixed type for an $n$-dimensional $(n\geq 2)$ composed body in $\bR^n$. The body is composed of two anisotropic bodies with smooth boundaries stick together along parts of their boundaries. Therefore the body has a closed smooth cuspidal edge, along which the Dirichlet and Neumann conditions in the mixed problem collide. Asymptotics of solutions are obtained near the cuspidal edge ($L_p$--theory), with precise description of exponents and of logarithmic terms of the expansion.

Mathematics Subject Classification: 47A68, 35J25, 35J55.

Key words and phrases: Dirichlet, Neumann and mixed problems, anisotropic homogeneous media, pseudodifferential operators, asymptotic of solutions, Wiener-Hopf method.