7 papers
Inverse Density Problem for Linear Elasticity: Uniqueness from Local Measurements on a Partially Accessible Boundary
Yu Jia, Chengyu Wu, Jiaqing Yang
We consider the inverse boundary value problem in an elasticity system. It is proved that the density function and its derivatives at the boundary can be uniquely determined f…
Elastic scattering by locally rough interfaces
Chengyu Wu, Yushan Xue, Jiaqing Yang
In this paper, we present the first well-posedness result for elastic scattering by locally rough interfaces in both two and three dimensions. Inspired by the Helmholtz decompositi…
Recovering discontinuous viscosity coefficients for inverse Stokes problems by boundary measurements
Yu Jia, Chengyu Wu, Hao Wu +1
In this paper, we investigate the inverse Stokes problem of determining a discontinuous viscosity coefficient in a bounded domain . By analyzing the sin…
Direct and inverse acoustic scattering by global rough surfaces
Chengyu Wu, Jiaqinq Yang
In this paper, we investigate on the direct and inverse scattering problem by an unbounded penetrable rough surface in a lossless medium. The cases that the transmission coefficien…
Boundary determination of electromagnetic parameters from local data
Chengyu Wu, Jiaqing Yang
In this paper, we extend and simplify the methods in [13] to improve the results on uniqueness of the boundary determination for the Maxwell equation. In particular, we show that t…
Boundary determination for the Schrödinger equation with unknown embedded obstacles by local data
Chengyu Wu, Jiaqing Yang
In this paper, we consider the inverse boundary value problem of the elliptic operator in a fixed region with unknown embedded obstacles . In part…