Original scientific paper
On path graphs of incidence graphs
D. Crnković
Abstract
For a given graph $G$ and a positive integer $k$ the $P_k$-path graph $P_k(G)$ has for vertices the set of paths of length $k$ in $G$.
Two vertices are connected in $P_k(G)$ when the intersection of the
corresponding paths forms a path of length $k-1$ in $G$, and their union forms either a cycle or a path of length $k+1$. Path graphs were proposed as a generalization of line graphs.
In this article we investigate some properties of path graphs of bipartite graphs, especially path graphs of incidence graphs of configurations.
Keywords
path graph; bipartite graph; perfect graph; incidence graph
Hrčak ID:
686
URI
Publication date:
22.12.2004.
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