#13445: Cuspidal subspace of modular forms over finite field contains forms that
are not cuspidal
---------------------------------+--------------------------
       Reporter:  mderickx       |        Owner:  craigcitro
           Type:  defect         |       Status:  new
       Priority:  major          |    Milestone:  sage-6.2
      Component:  modular forms  |   Resolution:
       Keywords:                 |    Merged in:
        Authors:                 |    Reviewers:
Report Upstream:  N/A            |  Work issues:
         Branch:                 |       Commit:
   Dependencies:                 |     Stopgaps:
---------------------------------+--------------------------

Comment (by AlexGhitza):

 Smaller example:

 {{{
 sage: M = ModularForms(Gamma1(11), base_ring=GF(11))
 sage: S = M.cuspidal_subspace()
 sage: S.basis()
 [
 1 + O(q^6)
 ]
 }}}

--
Ticket URL: <http://trac.sagemath.org/ticket/13445#comment:4>
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