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Abstract: This paper is concerned with the time periodic Lotka–Volterra competition–diffusion system where are T-periodic functions, , . Under certain conditions, the system admits two stable semi-trivial periodic solutions and and a unique coexistence periodic solution , which is unstable and satisfies and for . In this paper we prove that the system admits a time periodic traveling wave solution connecting two periodic solutions and as , where c is the wave speed. By using a dynamical method, we show that the time periodic traveling wave solution is asymptotically stable and unique modulo translation for front-like initial values. [Copyright &y& Elsevier]

Abstract: This paper is concerned with the initial value problem for the nonlinear Klein–Gordon–Schrödinger (KGS) equations in time–space. By using viscous approach, the existence of the global finite-energy solution is established for the nonlinear KGS equations by compactness argument. In addition, the uniqueness of the solution is proved by introducing a function with integral form. [Copyright &y& Elsevier]