#12772: bug in compact_system_of_eigenvalues for level 1 modular symbols
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       Reporter:  was            |         Owner:  craigcitro
           Type:  defect         |        Status:  new       
       Priority:  major          |     Milestone:  sage-5.0  
      Component:  modular forms  |    Resolution:            
       Keywords:                 |   Work issues:            
Report Upstream:  N/A            |     Reviewers:            
        Authors:                 |     Merged in:            
   Dependencies:                 |      Stopgaps:            
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Comment (by was):

 Tracing this down:

 {{{
 sage: R = ModularSymbols(1,12,sign=1).manin_gens_to_basis()
 sage:
 sage.modular.modsym.heilbronn.hecke_images_gamma0_weight_k(1,0,8,1,12,[2,3,5],
 R)
 ...
 [0 0]
 [0 0]
 [0 0]  <--- wrong -- shouldn't all be 0.
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12772#comment:1>
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