@Article{Bednarz2008, author = "Bednarz, Adam", title = "Exponential type vectors in Wiener algebras on a Banach ball", journal = "Opuscula Math.", year = "2008", volume = "28", number = "1", pages = "5--17", doi = "http://dx.doi.org/10.7494/OpMath.2008.28.1.5", url = "http://dx.doi.org/10.7494/OpMath.2008.28.1.5", abstract = "We consider Wiener type algebras on an open Banach ball. In particular, we prove that such algebras consist of functions analytic in this ball. We also consider a property of one-parameter groups generated by an isometric group acting on a Banach ball. We establish that the subspace of exponential type vectors of its generators form a dense subalgebra in a Wiener algebra and a generator is a derivation on this subspace.", keywords = "unitary one-parametric group, Wiener type algebras", issn = "1232-9274" }