American Journal of Mathematics, Vol. 129, No. 2 (Apr., 2007), pp. 429-454 (26 pages) If F(z) is a newform of weight 2λ and D is a fundamental discriminant, then let $ {\rm{L(F}} \otimes \chi ...

We prove the following statements about bounded linear operators on a separable, complex Hilbert space: (1) Every normal operator $N$ that is similar to a Hilbert ...