Combinatorial characterization of hexagonal systems
This paper provides a combinatorial characterization for the class of graphs that model molecular structures of aromatic benzenoid hydrocarbons. Based on invariant characteristics of these graphs, cata-, peri-, and corona-fused benzenoid hydrocarbons, and helicanes are simply distinguished. A canonical coding algorithm for cata- and peri-fused systems is given. Other applications are briefly discussed.
scientific article; zbMATH DE number 4029638