English

A Note on Circular Arc Online Coloring using First Fit

Data Structures and Algorithms 2013-12-05 v2 Discrete Mathematics Combinatorics

Abstract

In Raman (2007), using a column construction technique it is proved that every interval graph can be colored online with First Fit with at most 8w(G)8w(G) colors, where w(G)w(G) is the size of the maximum clique of GG. Since the column construction can not be adapted to circular arc graphs we give a different proof to establish an upper bound of 9w(G)9w(G) for online coloring a circular arc graph GG with the First Fit algorithm.

Cite

@article{arxiv.1211.0297,
  title  = {A Note on Circular Arc Online Coloring using First Fit},
  author = {Paraskevas V. Lekeas},
  journal= {arXiv preprint arXiv:1211.0297},
  year   = {2013}
}

Comments

9 pages, 3 figures, Figure 3 corrected from previous version

R2 v1 2026-06-21T22:31:49.354Z