#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: | Reviewers:
Authors: John Palmieri | Work issues:
Report Upstream: N/A | Commit:
Branch: | 4e507769605e20213ea92e64bd73cbb7b1d0195b
u/jhpalmieri/chains | Stopgaps:
Dependencies: #6102 |
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Comment (by chapoton):
This looks strange, in chain_complex_morphism.py:
{{{
+ self._matrix_dictionary = {}
+ for i in matrices:
+ m = matrices[i]
+ # Use immutable matrices because they're hashable.
+ m.set_immutable()
+ self._matrix_dictionary[i] = m
self._matrix_dictionary = matrices
}}}
Should the last line be removed ?
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Ticket URL: <http://trac.sagemath.org/ticket/19179#comment:9>
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