MMN-1983

On conversion of resonant problem to non-resonant one

N. Sveikate; F. Sadyrbaev;

Abstract

We consider a nonlinear resonant boundary value problem. To prove the existence of a solution to a given boundary value problem we replace the linear part of a given equation by non-resonant linear part. First, to modify a resonant problem to a regular one we use the Taylor expansion for $f(t,x)$ with respect to $x$. The second way of conversion a given problem to non-resonant one is based on an appropriate choice of ``good" approximation to expected solution. We provide the existence results illustrating both ways.


Vol. 18 (2017), No. 2, pp. 1059-1071
DOI: https://doi.org/10.18514/MMN.2017.1983


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