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Graphs with chromatic polynomial \(\sum_{l\leqslant m_0}\binom l{m_0-l} (\lambda)_l\). (English) Zbl 1008.05061
Summary: Using the properties of the chromatic polynomial and adjoint polynomial, we characterize all graphs having chromatic polynomial \(\sum_{l\leqslant m_0}\binom l{m_0-l}(\lambda)_l\).

MSC:
05C15 Coloring of graphs and hypergraphs
05C75 Structural characterization of families of graphs
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