Bobik, O. I.; Bodnarcuk, P. I.; Ptasnik, B. I.; Skorobogat’ko, V. Ja. Elemente der qualitativen Theorie der partiellen Differentialgleichungen. (Elementi jakisnoi teorii differencial’nyh rivnjan’z castinnimi pohidnimi.) Herausgegeben von V. Ja. Skorobogat’ko. (Ukrainian) Zbl 0261.35003 Kiev: ”Naukova Dumka”. 176 S. R. 1.16 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 35-02 Research exposition (monographs, survey articles) pertaining to partial differential equations 35B99 Qualitative properties of solutions to partial differential equations 35J15 Second-order elliptic equations 35L99 Hyperbolic equations and hyperbolic systems PDFBibTeX XML