Title: Extension of positive operators and Korovkin theorems
Subjects: Banach lattices, Convergence, Linear operators, Positive operators, Banach-Verband, Operatortheorie, Operateurs lineaires, Treillis de Banach, Erweiterung, Korovkin-Satz, Positiver Operator, Convergence (Mathematiques), Positiver linearer Operator