Šeda, Valter Some fixed point theorems for multivalued mappings. (English) Zbl 0674.47040 Czech. Math. J. 39(114), No. 1, 147-164 (1989). Reviewer: S.L.Singh MSC: 47H10 54C60 46A03 PDFBibTeX XMLCite \textit{V. Šeda}, Czech. Math. J. 39(114), No. 1, 147--164 (1989; Zbl 0674.47040) Full Text: DOI EuDML
Haščák, Alexander Fixed point theorems for multivalued mappings. (English) Zbl 0608.47063 Czech. Math. J. 35(110), 533-542 (1985). Reviewer: Ioan A.Rus MSC: 47H10 PDFBibTeX XMLCite \textit{A. Haščák}, Czech. Math. J. 35(110), 533--542 (1985; Zbl 0608.47063) Full Text: DOI EuDML
Haščák, Alexander Integral equivalence between a nonlinear system and its nonlinear perturbation. (English) Zbl 0598.34030 Math. Slovaca 34, 393-404 (1984). MSC: 34C20 34A34 PDFBibTeX XMLCite \textit{A. Haščák}, Math. Slovaca 34, 393--404 (1984; Zbl 0598.34030) Full Text: EuDML
Kartsatos, Athanassios G. On the relationship between a nonlinear system and its nonlinear perturbation. (English) Zbl 0226.34031 J. Differ. Equations 11, 582-591 (1972). MSC: 34C20 34D10 34A34 PDFBibTeX XMLCite \textit{A. G. Kartsatos}, J. Differ. Equations 11, 582--591 (1972; Zbl 0226.34031) Full Text: DOI
Svec, Marko Sur un problème aux limites. (French) Zbl 0182.11801 Czech. Math. J. 19(94), 17-26 (1969). PDFBibTeX XMLCite \textit{M. Svec}, Czech. Math. J. 19(94), 17--26 (1969; Zbl 0182.11801) Full Text: DOI EuDML
Kartsatos, A. G. Criteria for oscillation of solutions of differential equations of arbitrary order. (English) Zbl 0203.40002 Proc. Japan Acad. 44, 599-602 (1968). PDFBibTeX XMLCite \textit{A. G. Kartsatos}, Proc. Japan Acad. 44, 599--602 (1968; Zbl 0203.40002) Full Text: DOI