Gadziev, A. D. The convergence problem for a sequence of positive linear operators on unbounded sets, and theorems analogous to that of P. P. Korovkin. (English. Russian original) Zbl 0312.41013 Sov. Math., Dokl. 15, 1433-1436 (1974); translation from Dokl. Akad. Nauk SSSR 218, 1001-1004 (1974). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 90 Documents MSC: 41A35 Approximation by operators (in particular, by integral operators) 47A35 Ergodic theory of linear operators 47B60 Linear operators on ordered spaces 41A65 Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) PDFBibTeX XMLCite \textit{A. D. Gadziev}, Sov. Math., Dokl. 15, 1433--1436 (1974; Zbl 0312.41013); translation from Dokl. Akad. Nauk SSSR 218, 1001--1004 (1974)