Jan Kisyński. Representations of the convolution algebra D(R) and distrubution groups. Technical Report 644, Institute of Mathematics, Polish Academy of Sciences, Warsaw, Poland, 27pp, July 2003.

Keywords: factorization in convolution algebras; representations; factorization of infinitely differentiable vectors; distribution semigroups and semigroups; normal operators of Hilbert spaces; Fourier multipliers.