An (Equation presented) Lower Bound for Steiner Point Removal

  • Yu Chen
  • , Zihan Tan

Research output: Contribution to conferencePaperpeer-review

Abstract

In the Steiner point removal (SPR) problem, we are given a (weighted) graph G and a subset T of its vertices called terminals, and the goal is to compute a (weighted) graph H on T that is a minor of G, such that the distance between every pair of terminals is preserved to within some small multiplicative factor, that is called the stretch of H. It has been shown that on general graphs we can achieve stretch O(log |T|) [Filtser, 2018]. On the other hand, the best-known stretch lower bound is 8 [Chan-Xia-Konjevod-Richa, 2006], which holds even for trees. In this work, we show an improved lower bound of (Equation presented).

Original languageEnglish (US)
Pages694-698
Number of pages5
DOIs
StatePublished - 2024
Externally publishedYes
Event35th Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2024 - Alexandria, United States
Duration: Jan 7 2024Jan 10 2024

Conference

Conference35th Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2024
Country/TerritoryUnited States
CityAlexandria
Period1/7/241/10/24

Bibliographical note

Publisher Copyright:
Copyright © 2024 This paper is available under the CC-BY 4.0 license.

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