Open Access Research

On estimates of solutions of the periodic boundary value problem for first-order functional differential equations

Eugene Bravyi

Author Affiliations

Scientific center ‘Functional Differential Equations’, Perm National Research Polytechnical University, Komsomol’sky pr. 29, Perm, 614990, Russia

Boundary Value Problems 2014, 2014:119  doi:10.1186/1687-2770-2014-119

Dedicated to Professor Ivan Kiguradze

Published: 15 May 2014


Inequalities for periodic solutions of first-order functional differential equations are obtained. These inequalities are best possible in a certain sense.

MSC: 34K06, 34K10, 34K13.

functional differential equations; periodic solutions; periodic boundary value problem; estimates of solutions