#19179: Chain homotopies
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       Reporter:  jhpalmieri         |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.9
      Component:  algebraic          |   Resolution:
  topology                           |    Merged in:
       Keywords:  homotopy           |    Reviewers:
        Authors:  John Palmieri      |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  4d535262d98811febb3fa6ed1756b1987ef7ac22
  u/jhpalmieri/chains                |     Stopgaps:
   Dependencies:  #6102              |
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Changes (by jhpalmieri):

 * status:  needs_work => needs_review


Comment:

 Replying to [comment:14 chapoton]:
 > a few remarks on the doc:
 >
 > * please remove the dot at the end of the title line of the new file.

 Done

 > * Please remove the \circ in H \circ H at several places where it
 appears (or, if you really prefer, put such a composition symbol
 everywhere else), for coherence with other compositions.

 Done (removed `\circ`)

 > * What happens in chain homotopy if the given g is None ? This should be
 explained in the doc.

 This was already there, but I added a sentence.

 > * The def of "dual" of chain homotopy class should start with `r"""`

 Right, fixed.

 > * In dual for chain contraction, skip one line after the first sentence

 Done.

--
Ticket URL: <http://trac.sagemath.org/ticket/19179#comment:16>
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