Hey!

My goal is to write a script which checks if it is possible

if there is an extension from an isomorphism between two

subgraphs of one graph, say G, to an automorphism on G.

Problemetic is that if i check for the isomorphisms than iGraph

destroys the numbering of vertices, i.e. it resets the indexing

back to 0 and increments with each new vertex.

Why do I need that? I thought about embedding the isos into

the automorphisms but for this the indexing should coincide…

Any ideas how to fix this, or how to tackle this problem?

Some technical notes: I was using Python and the usual commands like

get_automorphisms_vf2()