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Symmetry breaking in maximal outerplanar, regular and Cayley graphs Alikhani, Saeid
Description
The distinguishing number (index) $D(G)$ ($D'(G)$) of a graph $G$ is the least integer $d$ such that $G$ has a vertex (edge) labeling with $d$ labels that is preserved only by a trivial automorphism. In this talk we consider the maximal outerplanar graphs (MOP graphs) and show that MOP graphs, except $K_3$, can be distinguished by at most two vertex (edge) labels. We also consider the distinguishing number and distinguishing index of regular and Cayley graphs. In particular, we present a family of Cayley graphs, graphical regular representations of a group, for which the distinguishing number and the distinguishing index is two. Coauthor: Samaneh Soltani
Item Metadata
Title |
Symmetry breaking in maximal outerplanar, regular and Cayley graphs
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2018-09-17T17:06
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Description |
The distinguishing number (index) $D(G)$ ($D'(G)$) of a graph $G$ is the least integer $d$ such that $G$ has a vertex (edge) labeling with $d$ labels that is preserved only by a trivial automorphism. In this talk we consider the maximal outerplanar graphs (MOP graphs) and show that MOP graphs, except $K_3$, can be distinguished by at most two vertex (edge) labels. We also consider the distinguishing number and distinguishing index of regular and Cayley graphs. In particular, we present a family of Cayley graphs, graphical regular representations of a group, for which the distinguishing number and the distinguishing index is two.
Coauthor: Samaneh Soltani
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Extent |
23.0
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Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Yazd University
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Series | |
Date Available |
2019-03-17
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0377015
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Faculty
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International