Filippov, A. F. Singular points of differential inclusions on a plane. (English) Zbl 0595.34035 Mosc. Univ. Math. Bull. 40, No. 6, 54-61 (1985). MSC: 34C05 PDFBibTeX XMLCite \textit{A. F. Filippov}, Mosc. Univ. Math. Bull. 40, No. 6, 54--61 (1985; Zbl 0595.34035)
Filippov, A. F. Investigation of a system of differential equations with two intersecting discontinuity lines. (English) Zbl 0504.34023 Mosc. Univ. Math. Bull. 34, No. 6, 66-74 (1979). MSC: 34D05 34C05 PDFBibTeX XMLCite \textit{A. F. Filippov}, Mosc. Univ. Math. Bull. 34, No. 6, 66--74 (1979; Zbl 0504.34023)
Filippov, A. F. A short proof of the theorem on the reduction of a matrix to Jordan form. (English) Zbl 0258.15005 Mosc. Univ. Math. Bull. 26(1971), No. 1-2, 70-71 (1972). MSC: 15A21 PDFBibTeX XML