Closed-form formulas for the Zhang-Zhang polynomials of benzenoid structures: Chevrons and generalized chevrons

Chien Pin Chou, Henryk A. Witek

Research output: Contribution to journalArticle

17 Citations (Scopus)


Closed-form, general formulas for the Zhang-Zhang (ZZ) polynomials for two important classes of benzenoid structures, chevrons Ch(k,m,n) and generalized chevrons Ch(k,m,n1,n2), are formally derived. The derivations rely on a new and important theorem, which states that the ZZ polynomial of two fused parallelograms can be represented as the product of the ZZ polynomials of the two separated fragments. This theoretical result seems to play an important role in the theory of pericondensed benzenoids and may prove useful for the process of discovering closed-form formulas of Zhang-Zhang polynomials of for a wide class of benzenoid structures.

Original languageEnglish
Pages (from-to)105-124
Number of pages20
Issue number1
Publication statusPublished - 2014
Externally publishedYes


ASJC Scopus subject areas

  • Chemistry(all)
  • Computer Science Applications
  • Computational Theory and Mathematics
  • Applied Mathematics

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