Ein starkes "Null-Zwei"-Gesetz in Lp.
Eine Bemerkung zur Lösung der Operatorgleichung
Elementary Tauberian Theorems For Regular Linear Operators
Elementary Tauberian theorems for regular linear operators.
Equivalence of -irreducibility concepts
Ergodic theorems and perturbations of contraction semigroups
We provide sufficient conditions for sums of two unbounded operators on a Banach space to be (pre-)generators of contraction semigroups. Necessary conditions and applications to positive emigroups on Banach lattices are also presented.
Expansion of an atomic operator.
Extension of Linear Operators
Extensions of positive operators and extreme points. I
Extensions of positive operators and extreme points. II
Extensions of positive operators and extreme points. III
Extensions of positive operators and extreme points. IV
Extensions uniformes des opérateurs positifs
Extreme operators on AL-spaces