Exponential second Zagreb index of chemical trees
Selvaraj Balachandran, Tomáš Vetrík · DOAJ (DOAJ: Directory of Open Access Journals) · 2021
Cruz, Monsalve and Rada [Extremal values of vertex-degree-based topological indices of chemical trees, Appl. Math. Comput. 380 (2020) 125281] posed an open problem to find the maximum value of the exponential second Zagreb index for chemical trees of given order. In this paper, we solve the open problem completely.