On the ergodic power function for invertible positive operators
On the essential order spectrum
On the lattice structure of invariant functions for Markov operators on
On the local spectral radius in partially ordered Banach spaces
On the modulus of one-parameter semigroups.
On the o-Spectrum of Order Bounded Operators.
On the o-Spektrum of Regular Operators and the Spectrum of Measures.
On the partial ordering of almost definite matrices
On the Perron-Frobenius theory for sets of positive operators
On the positivity of the unit element in a normed lattice ordered algebra
On the stability of strongly continuous semigroups of positive operators on
On the Structure of Non-Weakly Compact Operators on Banach Lattices.
On Theorems of de Pagter and Ando-Krieger.
Open partial isometries and positivity in operator spaces
We first study positivity in C*-modules using tripotents ( = partial isometries) which are what we call open. This is then used to study ordered operator spaces via an "ordered noncommutative Shilov boundary" which we introduce. This boundary satisfies the usual universal diagram/property of the noncommutative Shilov boundary, but with all the arrows completely positive. Because of their independent interest, we also systematically study open tripotents and their properties.
Opérateurs sommants sur un cone normal d un espace de Banach.
The aim of this paper is to develop a theory of p-summing operators (between Banach spaces) in presence of an order structure given by a convex normal cone.
Operators on some function spaces
Order bounded operators and tensor products of Banach lattices.
Order Derivations on Lp-Spaces of W*-Algebras.
Order Isomorphisms of Fourier-Stieltjes Algebras.
Ordered Vector Sequence Spaces and Related Classes of Linear Operators.