Fault Tolerant and Fully Dynamic DFS in Undirected Graphs: Simple Yet Efficient

Authors Surender Baswana, Shiv Gupta, Ayush Tulsyan



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Author Details

Surender Baswana
  • Department of Computer Science & Engineering, IIT Kanpur, Kanpur, India
Shiv Gupta
  • Department of Computer Science & Engineering, IIT Kanpur, Kanpur, India
Ayush Tulsyan
  • Department of Computer Science & Engineering, IIT Kanpur, Kanpur, India

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Surender Baswana, Shiv Gupta, and Ayush Tulsyan. Fault Tolerant and Fully Dynamic DFS in Undirected Graphs: Simple Yet Efficient. In 44th International Symposium on Mathematical Foundations of Computer Science (MFCS 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 138, pp. 65:1-65:16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)
https://doi.org/10.4230/LIPIcs.MFCS.2019.65

Abstract

We present an algorithm for a fault tolerant Depth First Search (DFS) Tree in an undirected graph. This algorithm is drastically simpler than the current state-of-the-art algorithms for this problem, uses optimal space and optimal preprocessing time, and still achieves better time complexity. This algorithm also leads to a better time complexity for maintaining a DFS tree in a fully dynamic environment.

Subject Classification

ACM Subject Classification
  • Theory of computation → Dynamic graph algorithms
Keywords
  • Depth first search
  • DFS
  • Dynamic graph algorithms
  • Fault tolerant

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