CM newforms with rational coefficients
Abstract
Description
We classify newforms with rational Fourier coefficients and complex multiplication for fixed weight up to twisting. Under the extended Riemann hypothesis for odd real Dirichlet characters, these newforms are finite in number. We produce tables for weights 3 and 4, where finiteness holds unconditionally.
17 pages, 3 tables; final version: Rem 7.2, Thm 9.2 added, references updated, minor changes
17 pages, 3 tables; final version: Rem 7.2, Thm 9.2 added, references updated, minor changes