F. G. Korablev, A. A. Kazakov, A. I. Sergeeva, “Function <nobr>$\omega_2$</nobr> for full bipatite spatial graphs”, Vestnik Chelyabinsk. Gos. Univ., 2012, Issue 15,Pages <nobr>125

Geometry and Topology

Function $\omega_2$ for full bipatite spatial graphs

F. G. Korablev, A. A. Kazakov, A. I. Sergeeva

Chelyabinsk State University

Abstract: The properties of the function $\omega_2 $ for full biparite spatial graphs are study. We prove that the value of this function is invariant with respect to embedding and is uniquely defined by an abstract full bipartite graph. It is also proved that the function $\omega_2$ is always trivial.

Keywords: spatial graph, hamiltonian link, bipartite graph.