Ergodic theorems and perturbations of contraction semigroups
Volume 195 / 2009
Studia Mathematica 195 (2009), 147-155
MSC: 47A35, 47B44, 47B60, 47D06.
DOI: 10.4064/sm195-2-4
Abstract
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.
