We establish necessary and sufficient conditions for the existence of solutions of weakly nonlinear degenerate boundary-value problems for systems of ordinary differential equations with a Noetherian operator in the linear part. We propose a convergent iterative procedure for finding solutions and establish the relationship between necessary and sufficient conditions.
机构:
Zhytomyr National Agricultural-Ecological University Staryi, Blvd, 7, ZhytomyrZhytomyr National Agricultural-Ecological University Staryi, Blvd, 7, Zhytomyr