运用单调动力系统定理,本文建立了如下一类具有曲率算子的非线性方程q(x,t)/t+ /x q(x,t)/ t /√1+(q(x,t)/t)2-g(q(x,t))=0波前解的存在性条件.
In this paper, we study the following nonlinear equation with mean curvature-like operator q(x,t)/t+ /x q(x,t)/ t /√1+(q(x,t)/t)2-g(q(x,t))=0 By using the theorem of the monotone dynamical system, the existence conditions of traveling wavefro- nts established.