A vertex of a graph is said to be pendant if its neighborhood contains exactly one vertex.
Pendant Vertex
See also
Pendant EdgeExplore with Wolfram|Alpha
References
Levit, V. E. and Mandrescu, E. "The Independence Polynomial of a Graph--A Survey." In Proceedings of the 1st International Conference on Algebraic Informatics. Held in Thessaloniki, October 20-23, 2005 (Ed. S. Bozapalidis, A. Kalampakas, and G. Rahonis). Thessaloniki, Greece: Aristotle Univ., pp. 233-254, 2005.Referenced on Wolfram|Alpha
Pendant VertexCite this as:
Weisstein, Eric W. "Pendant Vertex." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PendantVertex.html