Torek, 3. 1. 2012 od 10h do 12h, Plemljev seminar, Jadranska 19
-graphs were introduced in 1988 in the Foster Census and form a natural
generalization of the generalized Petersen graphs.
-graph is described by three integer parameters.
These graphs failed to attract attention of researchers for many years,
probably due to the fact that among the I
-graphs only generalized Petersen
graphs may be vertex-transitive or edge-transitive.
We now define a new class of graphs and call them GI-graphs (generalized I-graphs).
We study different properties of GI-graphs. In particular, we show that such graphs may be vertex-transitive. We also study automorphism groups of GI-graphs.