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Cohen-Macaulay Circulant Graphs [PDF]

open access: yes, 2012
Let G be the circulant graph C_n(S) with S a subset of {1,2,...,\lfloor n/2 \rfloor}, and let I(G) denote its the edge ideal in the ring R = k[x_1,...,x_n]. We consider the problem of determining when G is Cohen-Macaulay, i.e, R/I(G) is a Cohen-Macaulay ring.
Meulen, Kevin N. Vander   +2 more
openaire   +3 more sources

The local vertex anti-magic coloring for certain graph operations [PDF]

open access: yesHeliyon
This work proves the local vertex anti-magic coloring of even regular circulant bipartite graphs C(m;L). Let G be either Kr,r or Kr,r−F, F is a 1-factor.
L. Uma, G. Rajasekaran
doaj   +2 more sources

On Bipartite Circulant Graph Decompositions Based on Cartesian and Tensor Products with Novel Topologies and Deadlock-Free Routing

open access: yesAlgorithms, 2022
Recent developments in commutative algebra, linear algebra, and graph theory allow us to approach various issues in several fields. Circulant graphs now have a wider range of practical uses, including as the foundation for optical networks, discrete ...
Ahmed El-Mesady   +3 more
doaj   +1 more source

Integral mixed circulant graphs

open access: yesDiscrete Mathematics, 2023
A mixed graph is said to be \textit{integral} if all the eigenvalues of its Hermitian adjacency matrix are integer. The \textit{mixed circulant graph} $Circ(\mathbb{Z}_n,\mathcal{C})$ is a mixed graph on the vertex set $\mathbb{Z}_n$ and edge set $\{ (a,b): b-a\in \mathcal{C} \}$, where $0\not\in \mathcal{C}$.
Monu Kadyan, Bikash Bhattacharjya
openaire   +3 more sources

On infinite circulant-balanced complete multipartite graphs decompositions based on generalized algorithmic approaches

open access: yesAlexandria Engineering Journal, 2022
Graph theory is a powerful and essential tool for applied scientists and engineers in analyzing and designing algorithms for several problems. Graph theory has a vital role in complex systems, especially in computer sciences. Applications of graph theory
A. El-Mesady   +2 more
doaj   +1 more source

Locating and Identifying Codes in Circulant Graphs

open access: yesDiscrete Dynamics in Nature and Society, 2021
Identifying and locating-dominating codes have been studied widely in circulant graphs. Recently, Ville Junnila et al. (Optimal bounds on codes for location in circulant graphs, Cryptography and Communications; 2019) studied identifying and locating ...
Shu Jiao Song, Weiqian Zhang, Can Xu
doaj   +1 more source

The Dataset for Optimal Circulant Topologies

open access: yesBig Data and Cognitive Computing, 2023
This article presents software for the synthesis of circulant graphs and the dataset obtained. An algorithm and new methods, which increase the speed of finding optimal circulant topologies, are proposed.
Aleksandr Romanov
doaj   +1 more source

On the decomposition of circulant graphs using algorithmic approaches

open access: yesAlexandria Engineering Journal, 2022
Many structural models in chemistry, biology, computer science, sociology, and operations research can be analyzed using graph theory. Some examples of these structure models are species movement between regions, molecular bonds, shortest spanning trees,
A. El-Mesady, Y.S. Hamed, H. Shabana
doaj   +1 more source

The minimal and maximal energies of all cubic circulant graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
In recent article, Zhou and Zhou conjectured that among cubic circulant graphs with n vertices the maximum energy occurs whenever the largest number of components is attained.
Ilhan Hacioglu   +2 more
doaj   +1 more source

Layout of random circulant graphs [PDF]

open access: yesLinear Algebra and its Applications, 2018
A circulant graph H is defined on the set of vertices V=\left\{ 1,\ldots,n\right\} and edges E=\left\{ \left(i,j\right):\left|i-j\right|\equiv s\left(\textrm{mod}n\right),s\in S\right\} , where S\subseteq\left\{ 1,\ldots,\lceil\frac{n-1}{2}\rceil\right\} . A random circulant graph results from deleting edges of H with probability 1-p.
Sebastian Richter, Israel Rocha
openaire   +3 more sources

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