3 papers
math.FA2011
Counting the Resonances in High and Even Dimensional Obstacle Scattering
Lung-Hui Chen
In this paper, we give a polynomial lower bound for the resonances of perturbed by an obstacle in even-dimensional Euclidean spaces, . The proof is based on a Poisson…
math.FA2011
A Super-Exponential Decaying Property of Odd-Dimensional Wave Scattered by an Obstacle
Lung-Hui Chen
We examine an inverse backscattering property of wave motion imposed by an obstacle. We show that if the wave propagator decays super-exponentially along the back-scattered geodesi…
math.AP2010
Uniqueness on the Class of Odd-Dimensional Starlike Obstacles with Cross Section Data
Lung-Hui Chen
We determine the uniqueness on starlike obstacles by using the cross section data. We see cross section data as spectral measure in polar coordinate at far field. Cross section sca…