Matsenis, Jonas On the existence of the adjoint functions of the boundary value problems. (Russian) Zbl 0428.34020 Differ. Uravn. Primen. 24, 67-73 (1979). MSC: 34L99 34B10 47E05 PDFBibTeX XMLCite \textit{J. Matsenis}, Differ. Uravn. Primen. 24, 67--73 (1979; Zbl 0428.34020)
Kolesov, Yurij; Shvitra, Donatas Investigation of two-frequency oscillations in the ”predator-prey” problem. (Russian) Zbl 0427.34062 Differ. Uravn. Primen. 24, 49-66 (1979). MSC: 34K99 34A34 34C25 34D05 34C10 34K20 92D25 PDFBibTeX XMLCite \textit{Y. Kolesov} and \textit{D. Shvitra}, Differ. Uravn. Primen. 24, 49--66 (1979; Zbl 0427.34062)
Arkhipov, Viktor On one approach to the solution of degenerate differential equations. (Russian) Zbl 0426.35042 Differ. Uravn. Primen. 24, 9-28 (1979). MSC: 35J70 35A05 35B45 35A25 PDFBibTeX XMLCite \textit{V. Arkhipov}, Differ. Uravn. Primen. 24, 9--28 (1979; Zbl 0426.35042)
Nazarov, Sergej On the index of an elliptic boundary value problem with a small parameter in the highest derivatives. (Russian) Zbl 0425.35050 Differ. Uravn. Primen. 24, 75-85 (1979). MSC: 35J99 35R20 35B30 47F05 PDFBibTeX XMLCite \textit{S. Nazarov}, Differ. Uravn. Primen. 24, 75--85 (1979; Zbl 0425.35050)
Kvedaras, Bronyus On the solution of the Dirichlet problem for a degenerate elliptic equation. (Russian) Zbl 0418.35051 Differ. Uravn. Primen. 24, 29-47 (1979). MSC: 35J70 35A05 35C10 PDFBibTeX XMLCite \textit{B. Kvedaras}, Differ. Uravn. Primen. 24, 29--47 (1979; Zbl 0418.35051)
Rutkauskas, Stasis The Dirichlet problem for the elliptic equation degenerated at the points of a straight line. (Russian) Zbl 0418.35050 Differ. Uravn. Primen. 24, 87-103 (1979). MSC: 35J70 35A05 PDFBibTeX XMLCite \textit{S. Rutkauskas}, Differ. Uravn. Primen. 24, 87--103 (1979; Zbl 0418.35050)