Extremality of VDB topological indices over f–benzenoids with given order

作者：

Highlights：

• Determine the maximal values of the number of inlets over f-benzenoids with the number of internal vertices ni=1;2;3;4,respectively.

• Get the minimal values of the number of hexagons over f-benzenoids when the order n≡0;1;2;3(mod4),respectively.

• Give the extremal values of some well-known VTsover the set of fbenzenoids with a given order.

• Characterize the extremal fbenzenoids attaining these values.

摘要

•Determine the maximal values of the number of inlets over f-benzenoids with the number of internal vertices ni=1;2;3;4,respectively.•Get the minimal values of the number of hexagons over f-benzenoids when the order n≡0;1;2;3(mod4),respectively.•Give the extremal values of some well-known VTsover the set of fbenzenoids with a given order.•Characterize the extremal fbenzenoids attaining these values.

论文关键词：Topological index,VDB topological indices,Inlet,f–benzenoid

论文评审过程：Received 15 June 2020, Revised 6 October 2020, Accepted 20 October 2020, Available online 18 November 2020, Version of Record 18 November 2020.

论文官网地址：https://doi.org/10.1016/j.amc.2020.125757