Title: Optimal boundary gradient estimates for Lamé systems with partially infinite coefficients,
Abstract: In this paper, we derive the pointwise upper bounds and lower bounds on the
gradients of solutions to the Lamé systems with partially infinite
coefficients as the surface of discontinuity of the coefficients of the system
is located very close to the boundary. When the distance tends to zero, the
optimal blow-up rates of the gradients are established for inclusions with
arbitrary shapes and in all dimensions.