On reduced second Zagreb index

Graph theory and molecular orbitals. Total φ-electron energy of alternant hydrocarbons

İvan Gutman, Nenad Trinajstić · Chemical Physics Letters · 1972 · 2.1K citations

Natural Sciences, Chemistry, Physics +17

The Zagreb Indices 30 Years After

Sonja Nikolić, Goran Kovačević, Ante Miličević et al. · Hrčak Portal of scientific journals of Croatia (University Computing Centre) · 2003 · 547 citations · Full text

Natural Sciences, Chemical Engineering, Chemistry +15

Maximizing the sum of the squares of the degrees of a graph

Kinkar Chandra Das · Discrete Mathematics · 2004 · 218 citations

Natural Sciences, Computer Science, Mathematics +7

An upper bound on the sum of squares of degrees in a graph

D. de Caen · Discrete Mathematics · 1998 · 184 citations

Natural Sciences, Computer Science, Combinatorics +5

Graphs with maximal number of adjacent pairs of edges

Rudolf Ahlswede, Gyula O. H. Katona · Acta Mathematica Academiae Scientiarum Hungaricae · 1978 · 132 citations · Full text

Natural Sciences, Mathematics, Combinatorics +10