Biset, Tesfa (PhD)Negasi, Measho2019-09-302023-11-042019-09-302023-11-042018-08-02http://etd.aau.edu.et/handle/123456789/19243In this project we discuss on, the eigenvalue problems that we have found so useful for solving the PDEs to a general class of boundary value problems that share a common set of properties. The so-called Sturm-Liouville problems define a class of eigenvalue problems, which include many of the previous problems as special cases. The S - L Problem helps to identify those assumptions that are needed to define an eigenvalue problem with the properties that we require.enSturm-LiouvillePeriodicBoundary Value ProblemsThesis