Document Type: Regular Paper
Islamic Azad University, Neka Branch, Neka, Iran
Islamic Azad University, Jouybar Branch, Jouybar, Iran
Department of Mathematics, University of Mazandaran, Babolsar, Iran
In this paper, uniqueness theorem is studied for boundary value problem with "aftereffect" on a finite interval with discontinuity conditions in an interior point. The oscillation of the eigenfunctions corresponding to large modulus eigenvalues is established and an asymptotic of the nodal points is obtained. By using these new spectral parameters, uniqueness theorem is proved.