Walk counts, labyrinthicity, and complexity of acyclic and cyclic graphs and molecules.

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It is demonstrated how the complexity of a (molecular) graph can be quantified in terms of the walk counts, extremely easily obtained graph invariants that depend on size, branching, cyclicity, and edge and vertex weights (unsaturation, heteroatoms). The influence of symmetry is easily accounted for. The term labyrinthicity is proposed for what is measured by walk counts alone, neglecting symmetry. The total walk count and recently advanced measures of labyrinthicity or complexity are compared with respect to the ordering of structures and to the computational effort required to obtain numerical values.

Translated title of the contributionWalk counts, Labyrinthizität und Komplexität von azyklischen und zyklischen Graphen und Molekülen.
Original languageEnglish
JournalJournal of Chemical Information and Computer Sciences
Volume40
Issue number1
Pages (from-to)99-106
Number of pages8
ISSN0095-2338
DOIs
Publication statusPublished - 2000
Externally publishedYes

DOI

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