Hello everybody !!!!

I have a small problems with graphs => I would like to be able to talk
about a Z/2Z vector space defined over its edges (any set of edges is
independent)

Of course I can just create a Z/2Z vector space of dimension G.size()
(number of edges), but this would later mean that I constantly have to
keep track of which edge is represented by [ 0 0 0 .... 0 1 0 ... 0 ].
Is there any nice way to define elements of a VectorSpace from an edge
without having to build dictionaries in bth way (as soon as something
is computed using the vector space, one would need to "convert" the
result to have it in term of edges)..

Thank youuuuu ! :-)

Nathann

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