Extensions of positive projections and averaging operators
The authors prove extension theorems for positive projections in order complete Riesz spaces and Archimedean semiprime f-algebras thereby extending results of \textit{G. L. Seever} [Pac. J. Math. 17, 159-166 (1966; Zbl 0137.10002)] and \textit{C. B. Huijsmans} and \textit{B. de Pagter} [J. Math. Anal. Appl. 113, 163-184 (1986; Zbl 0604.47024)].
extension theorems for positive projections in order complete Riesz spaces and Archimedean semiprime f-algebras
scientific article; zbMATH DE number 4200986
scientific article