#9457: power series equality fails when trailing coefficients are zero
-------------------------------------+-------------------------------------
       Reporter:  niles              |        Owner:  malb
           Type:  defect             |       Status:  needs_work
       Priority:  major              |    Milestone:  sage-6.1
      Component:  commutative        |   Resolution:
  algebra                            |    Merged in:
       Keywords:                     |    Reviewers:
        Authors:  niles              |  Work issues:  resolve problems with
Report Upstream:  N/A                |  sha_tate.py
         Branch:                     |       Commit:
  u/niles/ticket/9457                |  e2219602a9d360f465ad79b098e4f923765ab791
   Dependencies:                     |     Stopgaps:  #15748
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Changes (by wuthrich):

 * cc: wuthrich (added)


Comment:

 Interesting. I just started to look at #4656 again this morning. And then
 I discovered this ticket. The problems there would get solved partially by
 this solution here and conversely, the problem there to fix it are with
 the supersingular case tested in this one case. Of course, I offer my help
 with this as I am at the origin of the code that causes troubles.

--
Ticket URL: <http://trac.sagemath.org/ticket/9457#comment:26>
Sage <http://www.sagemath.org>
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