English

A tight analysis of Kierstead-Trotter algorithm for online unit interval coloring

Data Structures and Algorithms 2016-11-03 v1

Abstract

Kierstead and Trotter (Congressus Numerantium 33, 1981) proved that their algorithm is an optimal online algorithm for the online interval coloring problem. In this paper, for online unit interval coloring, we show that the number of colors used by the Kierstead-Trotter algorithm is at most 3ω(G)33 \omega(G) - 3, where ω(G)\omega(G) is the size of the maximum clique in a given graph GG, and it is the best possible.

Keywords

Cite

@article{arxiv.1609.09031,
  title  = {A tight analysis of Kierstead-Trotter algorithm for online unit interval coloring},
  author = {Tetsuya Araki and Koji M. Kobayashi},
  journal= {arXiv preprint arXiv:1609.09031},
  year   = {2016}
}

Comments

4 pages

R2 v1 2026-06-22T16:04:28.134Z