1990/97/2

On pointwise ergodic theorems for positive operators

Stable rank of holomorphic function algebras

Remarks on singular convolution operators

The convolution equation of Choquet and Deny on semigroups

Sur les opérateurs nilpotents d'ordre deux

On algebraic generation of B(X) by two subalgebras with square zero

On the positivity of the unit element in a normed lattice ordered algebra

On the left and right joint spectra in Banach algebras