The Artin image of a weight one newform is the image of its associated Galois representation $\rho\colon \Gal(\overline\Q/\Q)\to \GL_2(\C)$.
The Artin image is a finite subgroup of $\GL_2(\C)$ whose cardinality is equal to the degree of the Artin field.
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- Last edited by John Voight on 2020-02-15 13:32:18
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- 2020-02-15 13:32:18 by John Voight (Reviewed)
- 2020-01-03 06:02:41 by Andrew Sutherland
- 2018-12-07 14:34:04 by Andrew Sutherland (Reviewed)