International Journal of Mathematics and Mathematical Sciences
Volume 10 (1987), Issue 4, Pages 825-827
doi:10.1155/S0161171287000929
An inverse problem for Helmholtz's equation
A.G. Ramm
Mathematics Department, Kansas State University, Manhattan 66506, KS, USA
Abstract
The refraction coefficient in Helmholtz's equation is found from the knowledge of a family of the solutions to this equation on two lines.