Bugir, M. K. Many-contour problems for partial differential equations in spaces of constant curvature. (English. Russian original) Zbl 0930.35034 Differ. Equations 33, No. 9, 1299-1302 (1997); translation from Differ. Uravn. 33, No. 9, 1288-1290 (1997). Reviewer: V.Chernyatin (Szczecin) MSC: 35C10 58J05 35J40 PDF BibTeX XML Cite \textit{M. K. Bugir}, Differ. Equations 33, No. 9, 1299--1302 (1997; Zbl 0930.35034); translation from Differ. Uravn. 33, No. 9, 1288--1290 (1997)
Bugir, M. K. Oscillation properties of solutions of linear differential equations in spaces of constant curvature. (English. Russian original) Zbl 0722.35007 Differ. Equations 26, No. 11, 1461-1466 (1990); translation from Differ. Uravn. 26, No. 11, 1956-1961 (1990). Reviewer: Hou Zonyi (Shanghai) MSC: 35B05 35J10 PDF BibTeX XML Cite \textit{M. K. Bugir}, Differ. Equations 26, No. 11, 1461--1466 (1990; Zbl 0722.35007); translation from Differ. Uravn. 26, No. 11, 1956--1961 (1990)
Bugir, M. K. The decomposition of G. Polya and G. Mammana for a system of equations. (English) Zbl 0294.34024 Differ. Equations 8(1972), 400-401 (1974). MSC: 34C10 PDF BibTeX XML Cite \textit{M. K. Bugir}, Differ. Equations 8, 400--401 (1974; Zbl 0294.34024)