Jaap Spies <j.sp...@hccnet.nl> writes:
> Nikos Apostolakis wrote:
>> The "translation=True" flag does not work after upgrading to sage 3.2.3
>> I am not sure when this behaviour was introduced. In version 2.10.2 it
>> works fine, unfortunately I don't have a more recent old sage to check.
>>
>> sage: foo = Graph()
>> sage: foo.add_edges([(0,1,1),(1,2,2), (2,3,3)])
>> sage: foo.automorphism_group(translation=True)
>
>
> This worked in sage-3.1.2 and before, giving
> (Permutation Group with generators [(1,2)(3,4)], {0: 4, 1: 1, 2: 2, 3: 3})
>
It seems that when the vertices are labelled 0,..., n-1 then the
translation is simply 0 <-> n, and the rest is fixed. At least
this is the case with all examples I've seen. Can I assume that
this will allways be the case?
TIA,
Nikos
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