Results 11 to 20 of about 1,439,443 (264)

THE COST NUMBER AND THE DETERMINING NUMBER OF A GRAPH [PDF]

open access: yesJournal of Algebraic Systems, 2021
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 a trivial automorphism. The minimum size of a label class in such a labeling of $G$ with $D(G) = d$ is
S. Alikhani, S. Soltani
doaj   +1 more source

‎Distinguishing index of Kronecker product of two graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2021
The distinguishing index D'(G)  of a graph G is the least integer d such that G has an edge labeling with d labels that is preserved only by a trivial automorphism. The Kronecker product G x H of two graphs G and H is the graph with vertex set V(G) x V(H)
‎Saeid Alikhani, Samaneh Soltani
doaj   +1 more source

Distinguishing Number and Distinguishing Index of the Join of Two Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2019
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 study the distinguishing number and the
Saeid Alikhani, Samaneh Soltani
doaj   +1 more source

The Distinguishing Chromatic Number [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2006
In this paper we define and study the distinguishing chromatic number, $\chi_D(G)$, of a graph $G$, building on the work of Albertson and Collins who studied the distinguishing number. We find $\chi_D(G)$ for various families of graphs and characterize those graphs with $\chi_D(G)$ $ = |V(G)|$, and those trees with the maximum chromatic distingushing ...
Collins, Karen L., Trenk, Ann N.
openaire   +2 more sources

On the local distinguishing chromatic number

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   +2 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.
Alikhani, S., Soltani, S.
openaire   +3 more sources

Equitable distinguishing chromatic number

open access: yesIndian Journal of Pure and Applied Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tayyebeh Amouzegar, Kazem Khashyarmanesh
openaire   +1 more source

Independent Exact Permutation Testing Algorithm for Distinguishing Sequential Pattern Discovery [PDF]

open access: yesJisuanji gongcheng, 2021
Traditional distinguishing sequential pattern mining algorithms usually generate a number of false positive patterns in their results, which hinder the subsequent decisions of tasks.
WU Jun, OUYANG Aijia, ZHANG Lin
doaj   +1 more source

Distinguishing number and distinguishing index of certain graphs [PDF]

open access: yesFilomat, 2017
The distinguishing number (index) D(G) (D0(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 compute these two parameters for some specific graphs.
Alikhani, Saeid, Soltani, Samaneh
openaire   +3 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.
Bahman Ahmadi   +2 more
openaire   +3 more sources

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