Il’in, E. M. Singularitäten schwacher Lösungen elliptischer Randwertprobleme mit unstetigen höchsten Koeffizienten. (Russian) Zbl 0353.35036 Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 38, 33-45 (1973). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 ReviewsCited in 1 Document MSC: 35J25 Boundary value problems for second-order elliptic equations 35D10 Regularity of generalized solutions of PDE (MSC2000) 35B99 Qualitative properties of solutions to partial differential equations PDFBibTeX XMLCite \textit{E. M. Il'in}, Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 38, 33--45 (1973; Zbl 0353.35036)