%0 Journal Article %T Ornstein-Uhlenbeck processes driven by cylindrical L¨¦vy processes %A Markus Riedle %J Mathematics %D 2012 %I arXiv %X In this article we introduce a theory of integration for deterministic, operator-valued integrands with respect to cylindrical L\'evy processes in separable Banach spaces. Here, a cylindrical L\'evy process is understood in the classical framework of cylindrical random variables and cylindrical measures, and thus, it can be considered as a natural generalisation of cylindrical Wiener processes or white noises. Depending on the underlying Banach space, we provide necessary and/or sufficient conditions for a function to be integrable. In the last part, the developed theory is applied to define Ornstein-Uhlenbeck processes driven by cylindrical L\'evy processes and several examples are considered. %U http://arxiv.org/abs/1212.3832v3