#4795: Modular forms over finite fields need work
---------------------------------+---------------------------
Reporter: craigcitro | Owner: craigcitro
Type: defect | Status: new
Priority: major | Milestone: sage-5.11
Component: modular forms | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Dependencies:
Stopgaps: |
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Comment (by AlexGhitza):
... and the obvious modification raises a NotImplementedError:
{{{
sage: m = ModularForms(DirichletGroup(8, GF(7)).1, 2, GF(7))
---------------------------------------------------------------------------
NotImplementedError Traceback (most recent call
last)
<ipython-input-12-a7072f0f67a6> in <module>()
----> 1 m = ModularForms(DirichletGroup(Integer(8),
GF(Integer(7))).gen(1), Integer(2), GF(Integer(7)))
/opt/sage/local/lib/python2.7/site-
packages/sage/modular/modform/constructor.pyc in ModularForms(group,
weight, base_ring, use_cache, prec)
335 # Need to add a lift_to_char_0 function for
characters,
336 # and need to still remember eps.
--> 337 raise NotImplementedError, "currently the character
must be over a ring of characteristic 0."
338 eps = eps.minimize_base_ring()
339 if eps.is_trivial():
NotImplementedError: currently the character must be over a ring of
characteristic 0.
}}}
Maybe we should turn this into an enhancement ticket.
--
Ticket URL: <http://trac.sagemath.org/ticket/4795#comment:3>
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