On 02.04.2012 at 12:20 in S6, there is the following noon lecture:
GI graphs and their groups
University of Ljubljana
We consider the class of GI-graphs, which is a generalization over the class of the generalized Petersen graphs. The GI-graph GI(n;j_1,j_2,....,j_t) is a (t+1)-valent graph on the vertex set Z_t times Z_n with edges of two kinds:
* edges from (s,v) to (s',v) for all s,s' in Z_t and for every v in Z_n,
* edges from (s,v) to (s,v + j_s) and (s,v - j_s) for all s and v.
We present some results concerning automorphisms of GI-graphs. This is a joint work in progress with Marston Conder and Arjana Žitnik.
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