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Gutman index – a critical personal account
(Beograd : Académie Serbe des sciences et des arts, 2021)
In the recent literature there are numerous publications concerned with a
graph invariant named “Gutman index” (ZZ). In this paper, some details about the discovery
of ZZ are explained. In particular, it is pointed out ...
Sombor index – one year later
(Beograd : Académie Serbe des sciences et des arts, 2020)
The Sombor index (SO) is a vertex–degree–based graph invariant, invented
in the Summer of 2020, and made publicly available in early 2021. In less than one year, a
remarkable number (almost fifty) research papers on this ...