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\(\pi /2\)-angle Xao graphs are spanners. (English) Zbl 1251.05036

MSC:
05C10 Planar graphs; geometric and topological aspects of graph theory
05C12 Distance in graphs
05C38 Paths and cycles
Keywords:
Yao graph; Y4; spanner
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References:
[1] DOI: 10.1016/j.comgeo.2004.04.003 · Zbl 1082.65015 · doi:10.1016/j.comgeo.2004.04.003
[2] Green J. W., Portugaliae Math. 10 pp 121–
[3] DOI: 10.1137/0211059 · Zbl 0492.68050 · doi:10.1137/0211059
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