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Pi/2-Angle Yao Graphs are Spanners

Published 17 Jan 2010 in cs.CG and cs.DS | (1001.2913v1)

Abstract: We show that the Yao graph Y4 in the L2 metric is a spanner with stretch factor 8(29+23sqrt(2)). Enroute to this, we also show that the Yao graph Y4 in the Linf metric is a planar spanner with stretch factor 8.

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