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A necessary and sufficient condition for the invertibility of a composition operator $C_\phi$ on $l^p$ is reported in this paper. The adjoint of $C_\phi$ is computed ...
The Rocky Mountain Journal of Mathematics, Vol. 39, No. 5 (2009), pp. 1467-1496 (30 pages) In this expository paper, we describe the Weyl calculus for bounded, self-adjoint operators acting on a ...