English

Faster Worst Case Deterministic Dynamic Connectivity

Data Structures and Algorithms 2015-11-05 v2

Abstract

We present a deterministic dynamic connectivity data structure for undirected graphs with worst case update time O(n(loglogn)2logn)O\left(\sqrt{\frac{n(\log\log n)^2}{\log n}}\right) and constant query time. This improves on the previous best deterministic worst case algorithm of Frederickson (STOC 1983) and Eppstein Galil, Italiano, and Nissenzweig (J. ACM 1997), which had update time O(n)O(\sqrt{n}). All other algorithms for dynamic connectivity are either randomized (Monte Carlo) or have only amortized performance guarantees.

Keywords

Cite

@article{arxiv.1507.05944,
  title  = {Faster Worst Case Deterministic Dynamic Connectivity},
  author = {Casper Kejlberg-Rasmussen and Tsvi Kopelowitz and Seth Pettie and Mikkel Thorup},
  journal= {arXiv preprint arXiv:1507.05944},
  year   = {2015}
}
R2 v1 2026-06-22T10:15:52.638Z