#18086: Twists of newforms
-------------------------+-------------------------------------------------
Reporter: pbruin | Owner:
Type: | Status: new
enhancement | Milestone: sage-6.6
Priority: major | Keywords: twist newform Dirichlet
Component: modular | character
forms | Authors:
Merged in: | Report Upstream: N/A
Reviewers: | Branch:
Work issues: | Dependencies: #6837
Commit: |
Stopgaps: |
-------------------------+-------------------------------------------------
As a follow-up to #6837, twists of newforms by Dirichlet characters should
be implemented.
Ater #6837, the method `Newform.twist()` (inherited from
`ModularForm_abstract`) fails because newforms do not have an
`is_cuspidal()` method. Instead of fixing this directly, `Newform` should
have its own `twist()` method, which should return the twisted form as a
`Newform`.
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Ticket URL: <http://trac.sagemath.org/ticket/18086>
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