The Zagreb Group Indices

The first numerical topological indices, based on the adjacency matrix, were introduced by the Zagreb group 3)  

The two Zagreb indices are applicable to the calculation of -electron energy of conjugated systems 4). 

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Those derived from the adjacency matrix the total adjacency index, the Zagreb group indices, the Randic connectivity index, the Platt index, the compatibility code, and the largest eigenvalue index ... 

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