Nonlocal boundary-value problems for systems on linear partial differential equations

• Date: 1997
• Main Authors: Goi, T. P., Ptashnik, B. I., Гой, Т. П., Пташник, Б. Й.
• Format: Article
• Language: Ukrainian; English
• Published: Institute of Mathematics, NAS of Ukraine 1997
• Online Access: https://umj.imath.kiev.ua/index.php/umj/article/view/5147
• Journal Title: Ukrains’kyi Matematychnyi Zhurnal

We study the classical well-posedness of problems with nonlocal two-point conditions for typeless systems of linear partial differential equations with variable coefficients in a cylindrical domain. We prove metric theorems on lower bounds for small denominators that appear in the construction of so...