Periodic solutions for neutral evolution equations with delays

Qiang Li, Yongxiang Li, Huanhuan Zhang

The aim is to study the periodic solution problem for neutral evolution equation $$(u(t)-G(t,u(t-\xi )){)}^{\prime }+Au(t)=F(t,u(t),u(t-\tau )),t\in \mathbb{R}$$in Banach space $X$, where $A:D(A)\sub…