2 papers
physics.comp-ph2023
ZZPolyCalc: An open-source code with fragment caching for determination of Zhang-Zhang polynomials of carbon nanostructures
Rafał Podeszwa, Henryk A. Witek, Chien-Pin Chou
Determination of topological invariants of graphene flakes, nanotubes, and fullerenes constitutes a challenging task due to its time-intensive nature and exponential scaling. The i…
math.CO2020
Zhang-Zhang Polynomials of Ribbons
Bing-Hau He, Chien-Pin Chou, Johanna Langner +1
We report a closed-form formula for the Zhang-Zhang polynomial (aka ZZ polynomial or Clar covering polynomial) of an important class of elementary pericondensed benzenoids $Rb\left…