#13158: Local components bug finding minimal twist
-------------------------------------+-------------------------------------
Reporter: davidloeffler | Owner: craigcitro
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.4
Component: modular forms | Resolution:
Keywords: local components | Merged in:
Authors: David Loeffer | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/davidloeffler/local_components_bug_finding_minimal_twist|
1994692c566e53f79774947647a03ab3c2042b98
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by {'newvalue': u'David Loeffer', 'oldvalue': ''}):
* status: new => needs_review
* commit: => 1994692c566e53f79774947647a03ab3c2042b98
* author: => David Loeffer
Comment:
Somehow, this sat idle for 3 years despite the fact that the fix is about
2 lines! It turns out that the code relies on the assumption that the
trace of the type space down to the minimal level is simple, but if f is
of CM type it can be the direct sum of two simple modules of opposite
sign.
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=1994692c566e53f79774947647a03ab3c2042b98
1994692]||{{{Trac 13158: local components bug finding minimal twist}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/13158#comment:6>
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