The Multivariable Zhang–Zhang Polynomial of Phenylenes
The Zhang–Zhang polynomial of a benzenoid system is a well-known counting polynomial that was introduced in 1996. It was designed to enumerate Clar covers, which are spanning subgraphs with only hexagons and edges as connected components. In 2018, the generalized Zhang–Zhang polynomial of two variab...
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Format: | Article |
Language: | English |
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MDPI AG
2023-11-01
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Series: | Axioms |
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Online Access: | https://www.mdpi.com/2075-1680/12/11/1053 |