#14128: Very bad mistakes in linear_arboricity
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Reporter: ncohen | Owner: jason, ncohen, rlm
Type: defect | Status: new
Priority: major | Milestone: sage-5.8
Component: graph theory | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors: Nathann Cohen
Merged in: | Dependencies:
Stopgaps: |
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`linear_arboricity` has a parameter `k` which appears to define the number
of colors, but does not. This patch renames is to `plus_one`. Plus the
function did not compute the decomposition with a minimum number of
colors.
Plus Andrew Juell reported "a counter example to a very old conjecture"
which turns out to be a Sage bug ! Too bad `:-)`
Nathann
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14128>
Sage <http://www.sagemath.org>
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