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Combinatorial properties of systems of sets

✍ Scribed by P Erdös; E Szemerédi


Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
290 KB
Volume
24
Category
Article
ISSN
0097-3165

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Combinatorial properties of some macrocy
✍ Sherif El-Basil 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 256 KB

Explicit formulae are given for the number of Clar structures, C (which represent maximal independent sets of vertices), of several classes of corona-condensed polyhex systems (primitive coronoids). There is a striking equivalence between expressions for c and K, the KekulC counts for the classes re