creative_2021_30_2_189_196A tournament is an orientation of a complete simple graph. The score of a vertex in a tournament is the out degree of the vertex. The Zagreb index of a tournament is defined as the sum of the squares of the scores of its vertices. The first general Zagreb index of a tournament 
is defined as 
, where 
is any real number other than 
and 
. In this paper, we obtain various lower and upper bounds for the first general Zagreb index of a tournament.
| Author(s) | Chishti, T. A., Naikoo, Tariq A., Pirzada, S., Rather, Bilal A. |
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