Gürses, M.Şişman, T. Ç.Tekin, B.2016-02-082016-02-0820152470-0010http://hdl.handle.net/11693/20770We find the explicit forms of the anti-de Sitter plane, anti-de Sitter spherical, and pp waves that solve both the linearized and exact field equations of the most general higher derivative gravity theory in three dimensions. As a subclass, we work out the six-derivative theory and the critical version of it where the masses of the two spin-2 excitations vanish and the spin-0 excitations decouple. © 2015 American Physical Society.EnglishArticle10.1103/PhysRevD.92.0840162470-0029