Polat, NecatTaskesen, Hatice2025-05-102025-05-1020140354-518010.2298/FIL1405073P2-s2.0-84908227145https://doi.org/10.2298/FIL1405073Phttps://hdl.handle.net/20.500.14720/16392Taskesen, Hatice/0000-0003-1058-0507The aim of this work is to study the global existence of solutions for the Cauchy problem of a Klein-Gordon equation with high energy initial data. The proof relies on constructing a new functional, which includes both the initial displacement and the initial velocity: with sign preserving property of the new functional we show the existence of global weak solutions.eninfo:eu-repo/semantics/openAccessKlein-Gordon EquationPotential WellGlobal ExistenceHigh Energy Initial DataArticle285Q3Q310731079WOS:000344775400015