#13046: Equimultiple liftings of curves over finite fields
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       Reporter:  minz                              |         Owner:  
AlexGhitza  
           Type:  enhancement                       |        Status:  
needs_review
       Priority:  minor                             |     Milestone:  sage-5.1  
  
      Component:  algebraic geometry                |    Resolution:            
  
       Keywords:  deformation theory, plane curves  |   Work issues:            
  
Report Upstream:  N/A                               |     Reviewers:            
  
        Authors:                                    |     Merged in:            
  
   Dependencies:  #12995                            |      Stopgaps:            
  
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Old description:

> Let `C` be a plane projective curves over a finite field `k` and `S` a
> finite set of `k`-sections of the projective plane. It would be nice if
> Sage could compute a lifting of the plane curve to a `p`-adic ring `R`
> (with finite precision) and liftings of the `k`-sections to `R`-sections
> of the projective plane such that the multiplicity of `C` at the `i`-th
> section is the same as the multplicity of the lifting at the lifted
> section.

New description:

 Let `C` be a plane projective curves over a finite field `k` and `S` a
 finite set of `k`-sections of the curve. It would be nice if Sage could
 compute a lifting of the plane curve to a `p`-adic ring `R` (with finite
 precision) and liftings of the `k`-sections to `R`-sections of the lifted
 curve such that the multiplicity of `C` at the `i`-th section is the same
 as the multplicity of the lifting at the lifted section.

 Apply
 [http://trac.sagemath.org/sage_trac/attachment/ticket/13046/trac_13046_v2.patch
 trac_13046_v2.patch]

--

Comment (by minz):

 Apply
 [http://trac.sagemath.org/sage_trac/attachment/ticket/13046/trac_13046_v2.patch
 trac_13046_v2.patch]

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13046#comment:2>
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