Minimal Vertex Cover
A minimal vertex cover is an vertex cover of a graph that is not a proper subset of any other vertex cover.
A minimal vertex cover corresponds to the complement of maximal independent vertex set, so the counts of minimal vertex covers and maximal independent vertex sets in a graph are identical.
Every minimum vertex cover is a minimal vertex cover, but the converse does not necessarily hold.
See also
Independent Vertex Set, Maximal Independent Vertex Set, Minimal Set, Minimum Vertex Cover, Vertex CoverExplore with Wolfram|Alpha
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Cite this as:
Weisstein, Eric W. "Minimal Vertex Cover." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/MinimalVertexCover.html