1 - Banach lattices and positive operators
Schaefer, Helmut H. (1925-2005)

Cote : [42.4 SCHA 74]

2 - Locally compact semi-algebras : with applications to spectral theory of positive operators
Kaashoek, Marinus A.   /   West, Timothy Trevor

Cote : [42.4 KAA 74]

3 - The approximation of continuous functions by positive linear operators
DeVore, Ronald A. (1941-....)

Cote : [49 DEV 72]