An improved upper bound on the integrality ratio for the s-t-path TSP

08/31/2018

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by   Vera Traub, et al.

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We give an improved analysis of the best-of-many Christofides algorithm with lonely edge deletion, which was proposed by Sebő and van Zuylen [2016]. This implies an improved upper bound on the integrality ratio of the standard LP relaxation for the s-t-path TSP.