Facial [r,s,t]-Colorings of Plane Graphs
Let G be a plane graph. Two edges are facially adjacent in G if they are consecutive edges on the boundary walk of a face of G. Given nonnegative integers r, s, and t, a facial [r, s, t]-coloring of a plane graph G = (V,E) is a mapping f : V ∪ E → {1, . . ., k} such that |f(v1) − f(v2)| ≥ r for ever...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
University of Zielona Góra
2019-08-01
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Series: | Discussiones Mathematicae Graph Theory |
Subjects: | |
Online Access: | https://doi.org/10.7151/dmgt.2135 |