#14347: Implement group cycle indices
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Reporter: agd | Owner: agd
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-6.2
Component: combinatorics | Resolution:
Keywords: cycle index, | Merged in:
species | Reviewers: Martin Rubey
Authors: Andrew Gainer- | Work issues: coverage, doctest
Dewar | Commit:
Report Upstream: N/A | 4cc6fafb26b9a1c069bac4511bf7017ec1a44041
Branch: u/agd/gcis | Stopgaps:
Dependencies: #14751, #14846 |
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Comment (by mhansen):
It primarily just splits the internal functions into methods on a class.
It also does not produce intermediate series for the linear combination
(LinearCombinationStream vs. {{{sum(coeff*monomial_composer(part, g) for
part,coeff in term)}}}). {{{map_item}}} does the job building the dict
and using {{{_from_dict}}}. Let me know if you have any specific
questions.
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Ticket URL: <http://trac.sagemath.org/ticket/14347#comment:45>
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