#10450: Problem computing Hecke matrices on subspaces of modular forms spaces
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Reporter: davidloeffler | Owner: craigcitro
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.6.2
Component: modular forms | Keywords: hecke operator
Author: David Loeffler | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by davidloeffler):
* status: needs_info => needs_review
Comment:
Here's a new patch which should correct the prime power case as well. The
new version does all of the factoring tricks etc at the level of the
ambient space (or, where possible, its eisenstein or cuspidal submodule),
and just restricts the answer to the given subspace at the end. Along the
way, I've fixed a tiny bug in {{{eisenstein_submodule}}} and
{{{cuspidal_submodule}}}, and added {{{is_eisenstein}}} and
{{{is_cuspidal}}}, for generic mod forms spaces.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10450#comment:4>
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