r-dynamic chromatic number of some line graphs

Hanna Furmańczyk , J. Vernold Vivin , N. Mohanapriya


An r-dynamic coloring of a graph G is a proper coloring c of the vertices such that |c(N(v))| ≥ min{r,deg(v)}, for each v∈V(G). The r-dynamic chromatic number of a graph G is the smallest k such that G admits an r-dynamic coloring with k colors. In this paper, we obtain the r-dynamic chromatic number of the line graph of helm graphs Hn for all r between minimum and maximum degree of Hn. Moreover, our proofs are constructive, what means that we give also polynomial time algorithms for the appropriate coloring. Finally, as the first, we define an equivalent model for edge coloring.
Author Hanna Furmańczyk (FMPI / II)
Hanna Furmańczyk,,
- Institute of Informatics
, J. Vernold Vivin
J. Vernold Vivin,,
, N. Mohanapriya
N. Mohanapriya,,
Journal seriesIndian Journal of Pure & Applied Mathematics, ISSN 0019-5588, (A 15 pkt)
Issue year2018
Publication size in sheets0.5
Keywords in Englishr-dynamic coloring, conditional coloring, line graph, helm graph
ASJC Classification2604 Applied Mathematics; 2600 General Mathematics
URL https://www.insa.nic.in/writereaddata/UpLoadedFiles/IJPAM/Vol49_2018_4_ART02.pdf
Languageen angielski
Score (nominal)15
ScoreMinisterial score = 15.0, 24-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.515; WoS Impact Factor: 2017 = 0.252 (2) - 2017=0.379 (5)
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