Results 21 to 30 of about 590,064 (163)

Maximum nullity and zero forcing of circulant graphs

open access: yesSpecial Matrices, 2020
The zero forcing number of a graph has been applied to communication complexity, electrical power grid monitoring, and some inverse eigenvalue problems.
Duong Linh   +4 more
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

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   +4 more sources

The Number of Spanning Trees in Generalized Complete Multipartite Graphs of Fan-Type [PDF]

open access: yes, 2011
Approaching topics such as connected simple graph, k-partite graph, complete graph, tree, Smarandache (E1,E2)-number of ...
Junliang Cai   +3 more
core   +1 more source

Removing Symmetry in Circulant Graphs and Point-Block Incidence Graphs

open access: yesMathematics, 2021
An automorphism of a graph is a mapping of the vertices onto themselves such that connections between respective edges are preserved. A vertex v in a graph G is fixed if it is mapped to itself under every automorphism of G. The fixing number of a graph G
Josephine Brooks   +5 more
doaj   +1 more source

Complete resolution of the circulant nut graph order-degree existence problem [PDF]

open access: yes, 2022
A circulant nut graph is a non-trivial simple graph such that its adjacency matrix is a circulant matrix whose null space is spanned by a single vector without zero elements. Regarding these graphs, the order-degree existence problem can be thought of as
Damnjanović, Ivan
core   +1 more source

Rotational circulant graphs

open access: yesDiscrete Applied Mathematics, 2014
Final ...
Alison Thomson, Sanming Zhou
openaire   +3 more sources

The hyperbolicity constant of infinite circulant graphs

open access: yesOpen Mathematics, 2017
If X is a geodesic metric space and x1, x2, x3 ∈ X, a geodesic triangle T = {x1, x2, x3} is the union of the three geodesics [x1x2], [x2x3] and [x3x1] in X.
Rodríguez José M., Sigarreta José M.
doaj   +1 more source

Resolvability in Subdivision of Circulant Networks Cn1,k

open access: yesDiscrete Dynamics in Nature and Society, 2020
Circulant networks form a very important and widely explored class of graphs due to their interesting and wide-range applications in networking, facility location problems, and their symmetric properties.
Jianxin Wei   +3 more
doaj   +1 more source

On the Metric Dimension of Directed and Undirected Circulant Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
The undirected circulant graph Cn(±1, ±2, . . . , ±t) consists of vertices v0, v1, . . . , vn−1 and undirected edges vivi+j, where 0 ≤ i ≤ n − 1, 1 ≤ j ≤ t (2 ≤ t ≤ n2{n \over 2} ), and the directed circulant graph Cn(1, t) consists of vertices v0, v1, .
Vetrík Tomáš
doaj   +1 more source

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