Hello,
I'm working on directed graphs. So
sage : G = DiGraph()
...
and I want to know if my graph G is strongly connected. There is such
a method in networkx but it seems that this features disappear in SAGE
(?). Moreover, there is a method strongly_connected_components which
return the decomposition in strongly connected components. My solution
is for now :
def is_strongly_connected(G) :
if G.vertices() == 0 : return True
return len(G.strongly_connected_components()) != 1
Which is a really non efficient.
Hoping somebody knows where this feature hides.
Vincent D.
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