Slowly oscillating wavefronts of the KPP-Fisher delayed equation

Karel Hasik, Sergei Trofimchuk

This paper concerns the semi-wavefronts (i.e. bounded solutions $u=\varphi (x\nu +ct)>0,$ $|\nu |=1,$ satisfying $\varphi (-\infty )=0$) to the delayed KPP-Fisher equation $$u_t(t,x) = Δu(t,x) + u(…