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Linear colorings of graphs

Published: May 5, 2025 | arXiv ID: 2505.02768v1

By: Claire Hilaire , Matjaž Krnc , Martin Milanič and more

Potential Business Impact:

Makes computer problems easier to solve.

Business Areas:
Parks Travel and Tourism

Motivated by algorithmic applications, Kun, O'Brien, Pilipczuk, and Sullivan introduced the parameter linear chromatic number as a relaxation of treedepth and proved that the two parameters are polynomially related. They conjectured that treedepth could be bounded from above by twice the linear chromatic number. In this paper we investigate the properties of linear chromatic number and provide improved bounds in several graph classes.

Page Count
26 pages

Category
Mathematics:
Combinatorics