نتایج جستجو برای: sum graphs

تعداد نتایج: 172158  

Journal: :Journal of Mathematics 2022

The degree distance index (DDI) is a vertex-degree weighted version of well-known that called by Wiener (WI). In extremal theory graphs, improving the bounds with best possible values worth investigating problem. this note, exact formulae DDI for four different types sum graphs in terms various indic...

Journal: :Kragujevac Journal of Mathematics 2020

Journal: :International Journal of Computer Applications 2015

Journal: :Journal of Taibah University for Science 2020

Journal: :Carpathian Mathematical Publications 2019

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