An inverse problem for ultrahyperbolic type partial differential equations

In this thesis, an ultrahyperbolic type partial differential equation is considered with some Cauchy initial data. By using the given additional data on the solution, uniqueness of solution of an inverse problem of determining one of the coefficients in the equation is investigated. For this purpose, in the first section some basic definitions and theorems which are needed in the succeeding sections are given. Section 2 is devoted to some auxiliary lemmata. In the last section, a theorem related to the uniqueness of solution of the problem is presented.