#16264: Rotate error on childless binay trees
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Reporter: VivianePons | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.2
Component: combinatorics | Resolution:
Keywords: combinat, Tamari, binary | Merged in:
trees, FindStat | Reviewers:
Authors: Viviane Pons | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by stumpc5):
Replying to [comment:11 darij]:
> IMHO any kind of tweaks that forcibly make partial maps complete would
only obscure the kind of patterns and identities that FindStat is
attempting to find.
findstat can only handle maps that are defined for all elements of a
combinatorial collection and this makes sense -- but this should not be a
topic here (whatever you guys gonna decide, we will have to look for a,
possibly different, solution for findstat).
Nevertheless, there should be a description of the rotation map on other
Catalan objects (through a bijection to binary trees), and a natural
extension there should lead to an extension of the rotation map. Does such
a description exist?
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Ticket URL: <http://trac.sagemath.org/ticket/16264#comment:13>
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