# On line perfect graphs

@article{Werra1978OnLP, title={On line perfect graphs}, author={D. Werra}, journal={Mathematical Programming}, year={1978}, volume={15}, pages={236-238} }

Line-perfect graphs have been defined by L.E. Trotter as graphs whose line-graphs are perfect. They are characterized by the property of having no elementary odd cycle of size larger than 3. L.E. Trotter showed constructively that the maximum cardinality of a set of mutually non-adjacent edges (matching) is equal to the minimum cardinality of a collection of sets of mutually adjacent edges which cover all edges.The purpose of this note is to give an algorithmic proof that the chromatic index of… Expand

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