Rotationally-continuous operators on the Fock space

Abstract

We study operators on the Fock space on which by adjoining the rotation operators implements a continuous action of the circle group. We prove that this class of operators can be identified with the space of band-dominated operators on ${\ell }^2({\mathbb{N}}_0)$ by mapping the operators to their matrix representations with respect to the standard orthonormal basis. Further, we prove that the intersection of this class with the Toeplitz algebra of the Fock space agrees, in the same manner, with the band-dominated operators on ${\ell }^2({\mathbb{N}}_0)$ such that the diagonals of the matrix are sequences which are uniformly continuous with respect to the square-root metric.

Revised version of the paper; 18 pages