#14777: is_isomorphic fails on empty graph
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Reporter: ajroberts | Owner: jason, ncohen, rlm
Type: defect | Status: new
Priority: major | Milestone: sage-5.11
Component: graph theory | Resolution:
Keywords: Graphs, Isomorphisms | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Description changed by ajroberts:
Old description:
> G=Graph()
> H=Graph()
>
> G.is_isomorphic(H) returns False
>
> It should return True
New description:
G=Graph()
H=Graph()
G.is_isomorphic(H) returns False
It should return True.
The same problem occurs in the Digraph case.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14777#comment:1>
Sage <http://www.sagemath.org>
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