We introduce edge covers, edge covering numbers, and minimum edge covers of graphs. An edge cover of a graph G is a set L such that every vertex of G is incident to some edge of L. Every graph with no isolated vertices has an edge cover. An edge cover of minimum cardinality is a minimum edge cover, and the cardinality of such a cover is the edge covering number of the graph. We see some edge cover examples and discuss some facts about edge covers of graphs. #graphtheory

Vertex Covers and Vertex Covering Numbers:    • Vertex Covers and Vertex Covering Num...  

Graph Theory course:    • Graph Theory  
Graph Theory exercises:    • Graph Theory Exercises  

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