Croatica Chemica Acta, Vol. 56 No. 3, 1983.
Original scientific paper
Topological Properties of Benzenoid Systems. XXI. Theorems, Conjectures, Unsolved Problems
Ivan Gutman
; Faculty of Science, University of Kragujevac, P. 0. Box 60, 34000 Kragujevac Serbia, Yugoslavia
Abstract
The main known mathematical results (in the form of 32 theorems
and 5 conjectures) about benzenoid systems are collected.
A few new results (seven theorems) are proved. Seven unsolved
problems are also pointed out.
The paper contains results on the basic properties of benzenoid
graphs, on the number of Kekule structures and on Clar's
resonant sextet formulas.
Keywords
Hrčak ID:
194205
URI
Publication date:
1.10.1983.
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