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The list Distinguishing Number Equals the Distinguishing Number for Interval Graphs [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2017
A distinguishing coloring of a graph G is a coloring of the vertices so that every nontrivial automorphism of G maps some vertex to a vertex with a different color. The distinguishing number of G is the minimum k such that G has a distinguishing coloring
Immel Poppy, Wenger Paul S.
doaj   +7 more sources

On the Distinguishing Number of Functigraphs [PDF]

open access: yesSymmetry, 2018
Let G 1 and G 2 be disjoint copies of a graph G and g : V ( G 1 ) → V ( G 2 ) be a function. A functigraph F G consists of the vertex set V ( G 1 ) ∪ V ( G 2 ) and the edge set E ( G 1 ) ∪ E ( G 2 ) ∪ { u v : g ( u ) = v } .
Usman Ali   +2 more
exaly   +5 more sources

The distinguishing number of the hypercube [PDF]

open access: yesDiscrete Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lenore Cowen
exaly   +4 more sources

The distinguishing number and the distinguishing index of line and graphoidal graph(s)

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
The distinguishing number (index) () of a graph is the least integer such that has a vertex labeling (edge labeling) with labels that is preserved only by a trivial automorphism.
Saeid Alikhani, Samaneh Soltani
exaly   +4 more sources

On the graphs with distinguishing number equal list distinguishing number [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
The distinguishing number $D(G)$ of a graph $G$ is the least integer $d$ such that $G$ has an vertex labeling with $d$ labels that is preserved only by the trivial automorphism.
Saeid Alikhani, Samaneh Soltani
doaj   +3 more sources

On the local distinguishing chromatic number [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
The distinguishing number of graphs is generalized in two directions by Cheng and Cowen (local distinguishing number) and Collins and Trenk (Distinguishing chromatic number). In this paper, we define and study the local distinguishing chromatic number of
Omid Khormali
doaj   +3 more sources

Trees with distinguishing number two [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
The distinguishing number of a graph is the least integer such that has a vertex labeling with labels that is preserved only by a trivial automorphism. In this paper we characterize all trees with radius at most three and distinguishing number two.
Saeid Alikhani, Samaneh Soltani
doaj   +4 more sources

Number of distinguishing colorings and partitions [PDF]

open access: yesDiscrete Mathematics, 2020
A vertex coloring of a graph $G$ is called distinguishing (or symmetry breaking) if no non-identity automorphism of $G$ preserves it, and the distinguishing number, shown by $D(G)$, is the smallest number of colors required for such a coloring. This paper is about counting non-equivalent distinguishing colorings of graphs with $k$ colors.
Mohammad Hadi Shekarriz, Bahman Ahmadi
exaly   +4 more sources

The Distinguishing Numbers and the Distinguishing Indexes of Cayley Graphs

open access: yesJournal of Applied and Industrial Mathematics, 2021
The distinguishing number (index) $D(G)$ ($D'(G)$) of a graph $G$ is the least integer $d$ such that $G$ has an vertex labeling (edge labeling) with $d$ labels that is preserved only by a trivial automorphism. In this paper, we investigate the distinguishing number and the distinguishing index of Cayley graphs.
Saeid Alikhani
exaly   +4 more sources

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