Geodesic
Extremal Unicyclic and Bicyclic Graphs with Respect to Harary Index
Bulletin of the Malaysian Mathematical Society, Tome 36 (2013) no. 2

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The Harary index is defined as the sum of reciprocals of distances between all pairs of vertices of a connected graph. In this paper, we determined the extremal (maximal and minimal) unicyclic and bicyclic graphs with respect to Harary index.
Classification : 05C90 
Kexiang Xu; Kinkar Ch. Das. Extremal Unicyclic and Bicyclic Graphs with Respect to Harary Index. Bulletin of the Malaysian Mathematical Society, Tome 36 (2013) no. 2. http://geodesic.mathdoc.fr/item/BMMS_2013_36_2_a11/
@article{BMMS_2013_36_2_a11,
     author = {Kexiang Xu and Kinkar Ch. Das},
     title = {Extremal {Unicyclic} and {Bicyclic} {Graphs} with {Respect} to {Harary} {Index}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2013},
     volume = {36},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2013_36_2_a11/}
}
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