Omega Index of Line and Total Graphs

Musa Demirci, Sadik Delen, Ahmet Sinan Cevik, Ismail Naci Cangul and Elena Guardo

Journal of Mathematics, 2021, vol. 2021, 1-6

Abstract: A derived graph is a graph obtained from a given graph according to some predetermined rules. Two of the most frequently used derived graphs are the line graph and the total graph. Calculating some properties of a derived graph helps to calculate the same properties of the original graph. For this reason, the relations between a graph and its derived graphs are always welcomed. A recently introduced graph index which also acts as a graph invariant called omega is used to obtain such relations for line and total graphs. As an illustrative exercise, omega values and the number of faces of the line and total graphs of some frequently used graph classes are calculated.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jjmath:5552202

DOI: 10.1155/2021/5552202

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