Tekin, İbrahim2021-03-202021-03-2020201302-93042547-958Xhttp://doi.org/10.21205/deufmd.2020226525https://app.trdizin.gov.tr/makale/TXpjeU16VXpNdz09https://hdl.handle.net/20.500.12885/1554In this paper, an initial-boundary value problem for a two-dimensional waveequation which arises in the equation of motion for the forced transverse vibration of a rectangular membrane is considered. Giving an additional condition, a time-dependentcoefficient is determined and existence anduniqueness theorem for smalltimes is proved.Moreover, characterization of the conditional stability isgivenand numerical solution of the inverse probleminvestigatedby using finite difference method.eninfo:eu-repo/semantics/openAccess[No Keywords]Article10.21205/deufmd.20202265252265599610