Harary index of Eulerian graphs

Autor: Linlin Zhang, Junqing Cai, Panpan Wang
Rok vydání: 2021
Předmět:
Zdroj: Journal of Mathematical Chemistry. 59:1378-1394
ISSN: 1572-8897
0259-9791
DOI: 10.1007/s10910-021-01246-2
Popis: The Harary index of a connected (molecular) graph is defined as the sum of reciprocals of distances between all its pairs of vertices. In this paper, we characterize the extremal Eulerian graphs (with a fixed number of vertices) with greatest and smallest Harary indices and characterize the Harary indices of two special type of Eulerian graphs.
Databáze: OpenAIRE
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