Traveling Wave Solutions of a Reaction-Diffusion Equation with   State-Dependent Delay
  This paper is concerned with the traveling wave solutions of a reaction-diffusion equation with state-dependent delay. When the birth function is monotone, the existence and nonexistence of monotone traveling wave solutions are established. When the birth function is not monotone, the minimal wave speed of nontrivial traveling wave solutions is obtained. The results are proved by the construction of upper and lower solutions and application of the fixed point theorem. 
Guo Lin and Haiyan Wang
math.DS math.AP