Results 181 to 190 of about 990 (211)

Integral circulant graphs

open access: yesDiscrete Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wasin So
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On Gorenstein circulant graphs

Discrete Mathematics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ashkan Nikseresht, Mohammad Reza Oboudi
openaire   +1 more source

On Routing in Circulant Graphs

1999
We investigate various problems related to circulant graphs- finding the shortest path between two vertices, finding the shortest loop, and computing the diameter. These problems are related to short- est vector problems in a special class of lattices. We give matching upper and lower bounds on the length of the shortest loop.
Jin-yi Cai   +5 more
openaire   +2 more sources

Star Extremal Circulant Graphs

SIAM Journal on Discrete Mathematics, 1999
A graph is said to be star extremal if its fractional chromatic number is equal to its circular chromatic number. In this paper, it is proven that some families of circulant graphs are star extremal. The results generalize some earlier results obtained by \textit{A. F. Sidorenko} [Discrete Math.
Ko-Wei Lih   +2 more
openaire   +1 more source

Undirected circulant graphs

Proceedings of the International Symposium on Parallel Architectures, Algorithms and Networks (ISPAN), 2002
A fundamental problem in designing massively parallel computer systems and fast communication networks is the maximization of the number of nodes given a diameter and degree of a network. This maximal number is bounded above by the Moore bound. For undirected circulant graphs, an upper bound is also given but no exact formula has been found yet for ...
openaire   +1 more source

Generalized Recursive Circulant Graphs

IEEE Transactions on Parallel and Distributed Systems, 2012
In this paper, we propose a new class of graphs called generalized recursive circulant graphs which is an extension of recursive circulant graphs. While retaining attractive properties of recursive circulant graphs, the new class of graphs achieve more flexibility in varying the number of vertices. Some network properties of recursive circulant graphs,
Shyue-Ming Tang   +2 more
openaire   +1 more source

Total colorings of circulant graphs

Discrete Mathematics, Algorithms and Applications, 2020
The total chromatic number [Formula: see text] is the least number of colors needed to color the vertices and edges of a graph [Formula: see text] such that no incident or adjacent elements (vertices or edges) receive the same color. Behzad and Vizing proposed a well-known total coloring conjecture (TCC): [Formula: see text], where [Formula: see text]
J. Geetha 0001   +2 more
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A SURVEY ON UNDIRECTED CIRCULANT GRAPHS

Discrete Mathematics, Algorithms and Applications, 2012
Circulant graphs have been extensively investigated over the past 30 years because of their broad application to different fields of theory and practice. Two known surveys on circulant networks including a survey on undirected circulants have been published: by Bermond et al. [Distributed loop computer networks: A survey, J.
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Line graphs and circulants

Ars Comb., 2012
Summary: The line graph of \(G\), denoted \(L(G)\), is the graph with vertex set \(E(G)\), where vertices \(x\) and \(y\) are adjacent in \(L(G)\) iff edges \(x\) and \(y\) share a common vertex in \(G\). In this paper we determine all graphs \(G\) for which \(L(G)\) is a circulant graph.
Jason I. Brown, Richard Hoshino
openaire   +1 more source

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