#19191: LatticePoset: add is_planar()
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-6.9
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/latticeposet__add_is_planar__|
da6a1f9536ac362eef45f565515c752afdf9c84f
Dependencies: #19193 | Stopgaps:
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Comment (by ncohen):
> Also
> http://www.math.uh.edu/~hjm/1973_Lattice/p00512-p00518.pdf etc. uses
this definition.
At the bottom of page 1 in this paper I read "P is planar if it has a
planar diagram", where "diagram" is defined, just above, to be equal to
the hasse diagram.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/19191#comment:21>
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