On a smooth solution of a nonlinear periodic boundary-value problem

• Date: 1999
• Main Authors: Dobrynskii, V. A., Домбровський, I. В.
• Format: Article
• Language: Ukrainian; English
• Published: Institute of Mathematics, NAS of Ukraine 1999
• Online Access: https://umj.imath.kiev.ua/index.php/umj/article/view/4760
• Journal Title: Ukrains’kyi Matematychnyi Zhurnal

We establish conditions for the existence of a smooth solution of a quasilinear hyperbolic equationu tt - uxx = ƒ(x, t, u, u, u x),u (0,t) = u (π,t) = 0,u (x, t+ T) = u (x, t), (x, t) ∈ [0, π] ×R, and prove a theorem on the existence and uniqueness of a solution.