#8327: Implement the universal cyclotomic field, using Zumbroich basis
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       Reporter:  nthiery                            |         Owner:           
   
           Type:  enhancement                        |        Status:  
needs_review
       Priority:  major                              |     Milestone:  sage-5.6 
   
      Component:  number fields                      |    Resolution:           
   
       Keywords:  Cyclotomic field, Zumbroich basis  |   Work issues:           
   
Report Upstream:  N/A                                |     Reviewers:           
   
        Authors:  Christian Stump, Simon King        |     Merged in:           
   
   Dependencies:  #13727, #13728                     |      Stopgaps:           
   
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Comment (by stumpc5):

 Replying to [comment:126 nthiery]:

 > Did you try implementing the (partial) morphism from UCF to AA (using
 SetMorphism and the category of SetsWithPartialMaps), and register it as a
 conversion?

 Good call, it works now! Thanks!

 Btw: It would be nice to include this in the documentation, if not already
 done. At least if I google for {{{"sage SetMorphism
 SetsWithPartialMaps"}}}, I only get the file {{{root_space.py}}} which is
 perfectly fine to explain how to do it, but I only found it after you
 telling me what to look for.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:127>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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