一类具有时滞和扩散的传染病模型的单稳波，王宇晓，王智诚，本文研究了带扩散的时滞方程[left{egin{array}{ll} rac partial {partial t}u_1left( x,t ight) =d_1 riangleu_1left(x,t ight) -a_{11}u_1left( x,t ight) +a_{12}u_2left(