Periodic solutions for first order neutral functional differential equations with multiple deviating arguments
Tom 111 / 2014
Annales Polonici Mathematici 111 (2014), 197-213
MSC: 34C25, 34K13.
DOI: 10.4064/ap111-2-7
Streszczenie
We consider first order neutral functional differential equations with multiple deviating arguments of the form $$ (x(t)+Bx(t-\delta))'= g_{0}(t,x(t))+\sum\limits_{k=1}^{n}g_{k}(t,x(t-\tau_{k} (t))) +p(t). $$ By using coincidence degree theory, we establish some sufficient conditions on the existence and uniqueness of periodic solutions for the above equation. Moreover, two examples are given to illustrate the effectiveness of our results.
