Tikhonovregularization method for a Cauchy problem for the Helmholtz equation in

Tikhonov regularization method for a Cauchy problem for the Helmholtz equation in multiple dimensions-----，赵秋利，付初黎，This paper deals with a Cauchy problem for the Helmholtz equa- tion in multiple dimensions.We want to obtain the solution u on the boundary z = 0 from the given function g onthes