universal vertex (Q26789594)
vertex of an undirected graph that is adjacent to all other vertices of the graph. It may also be called a dominating vertex, as it forms a one-element dominating set in the graph
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aliases dominating vertex
description vertex of an undirected graph that is adjacent to all other vertices of the graph. It may also be called a dominating vertex, as it forms a one-element dominating set in the graph

External Links
(P2671) /g/11c1n833wk
(P2812) ConeGraph
(P6611) 280328