Abstract: The objective of this work is the application of Krasnosel'skii's fixed point technique to prove the existence of periodic solutions of a system of coupled nonlinear integro-differential equations with variable delays. An example is given to illustrate this work.
Keywords: integro-differential equation; periodic solution; Krasnosel'skii's fixed point theorem
DOI: DOI 10.14712/1213-7243.2022.007
AMS Subject Classification: 34K20 45J05 45D05