Results 21 to 30 of about 135,434 (260)

DISTINGUISHING CHROMATIC NUMBER OF THE HIERARCHICAL PRODUCT OF GRAPHS

open access: yesHacettepe Journal of Mathematics and Statistics
The distinguishing chromatic number $\chi_D(G)$ of a graph $G$ is the smallest number of colors needed to properly color the vertices of $G$ such that the only automorphism of $G$ that preserves colors is the identity. Studying the distinguishing chromatic number of graphs produced some interesting work, and in continuation, we may prefer to ...
T. Amouzegar
openaire   +2 more sources

On the Vertex-Distinguishing Edge Chromatic Number of 𝐏𝐦 ∨ 𝐂𝐧

open access: yesDEStech Transactions on Engineering and Technology Research, 2017
A proper edge coloring of graph G is called equitable adjacent strong edge coloring if colored sets from every two adjacent vertices incident edge are different, and the number of edges in any two color classes differ by at most one, which the required minimum number of colors is called the adjacent strong equitable edge chromatic number. In this paper,
Chuan-cheng ZHAO   +2 more
openaire   +3 more sources

Upper bounds on adjacent vertex distinguishing total chromatic number of graphs

open access: yesDiscrete Applied Mathematics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaolan Hu, Yunqing Zhang, Zhengke Miao
openaire   +2 more sources

Distinguishing Chromatic Numbers of Bipartite Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2009
Extending the work of K.L. Collins and A.N. Trenk, we characterize connected bipartite graphs with large distinguishing chromatic number. In particular, if $G$ is a connected bipartite graph with maximum degree $\Delta \geq 3$, then $\chi_D(G)\leq 2\Delta -2$ whenever $G\not\cong K_{\Delta-1,\Delta}$, $K_{\Delta,\Delta}$.
Laflamme, C., Seyffarth, K.
openaire   +2 more sources

Neighbor Distinguishing Colorings of Graphs with the Restriction for Maximum Average Degree

open access: yesAxioms, 2023
Neighbor distinguishing colorings of graphs represent powerful tools for solving the channel assignment problem in wireless communication networks. They consist of two forms of coloring: neighbor distinguishing edge coloring, and neighbor distinguishing ...
Jingjing Huo   +3 more
doaj   +1 more source

Adjacent Vertex Distinguishing Coloring of Fuzzy Graphs

open access: yesMathematics, 2023
In this paper, we consider the adjacent vertex distinguishing proper edge coloring (for short, AVDPEC) and the adjacent vertex distinguishing total coloring (for short, AVDTC) of a fuzzy graph.
Zengtai Gong, Chen Zhang
doaj   +1 more source

Adjacent vertex distinguishing acyclic edge coloring of the Cartesian product of graphs [PDF]

open access: yesTransactions on Combinatorics, 2017
‎Let $G$ be a graph and $chi^{prime}_{aa}(G)$ denotes the minimum number of colors required for an‎ ‎acyclic edge coloring of $G$ in which no two adjacent vertices are incident to edges colored with the same set of colors‎. ‎We prove a general bound for $
Fatemeh Sadat Mousavi, Massomeh Noori
doaj   +1 more source

The chromatic distinguishing index of certain graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
The distinguishing index of a graph , denoted by , is the least number of labels in an edge coloring of not preserved by any non-trivial automorphism. The distinguishing chromatic index of a graph is the least number such that has a proper edge coloring ...
Saeid Alikhani, Samaneh Soltani
doaj   +1 more source

On Adjacent Vertex-distinguishing Equitable-total Chromatic Number of Pm ∨ Fm

open access: yes, 2021
Suppose the simple graph G(V, E) is at least 2nd-order connected. We study the adjacent vertex-distinguishing equitable-total coloring of the join graph Pm ∨ Fm which belongs to the graph G(V, E). By constructing the total coloring of Pm ∨ Fm , we obtain
Jishun Wang   +3 more
semanticscholar   +1 more source

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