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This is the first book to comprehensively cover chromatic polynomials of graphs. It includes most of the known results and unsolved problems in the area of chromatic polynomials. Dividing the book ...

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Let G G be a simple connected graph. The first Zagreb index denoted by M 1(G) M 1 (G) is defined as M 1(G) = ∑u∈V d(u)2 M 1 (G) = ∑ u ∈ V d (u) 2. We present a lower bound for M 1(G) M 1 (G) in terms ...