Results 21 to 30 of about 332 (178)

Achromatic Numbers for Circulant Graphs and Digraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2021
In this paper, we determine the achromatic and diachromatic numbers of some circulant graphs and digraphs each one with two lengths and give bounds for other circulant graphs and digraphs with two lengths.
Araujo-Pardo Gabriela   +3 more
doaj   +1 more source

HS-integral and Eisenstein integral mixed circulant graphs

open access: yesTheory and Applications of Graphs, 2023
A mixed graph is called \emph{second kind hermitian integral} (\emph{HS-integral}) if the eigenvalues of its Hermitian-adjacency matrix of the second kind are integers.
Monu Kadyan, Bikash Bhattacharjya
doaj   +1 more source

Block circulant graphs and the graphs of critical pairs of crowns

open access: yesElectronic Journal of Graph Theory and Applications, 2019
In this paper, we provide a natural bijection between a special family of block circulant graphs and the graphs of critical pairs of the posets known as generalized crowns.
Rebecca E. Garcia   +3 more
doaj   +1 more source

Asymptotic energy of connected cubic circulant graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
In this article, we compute the oblique asymptote of the energy function for all connected cubic circulant graphs. Moreover, we show that this oblique asymptote is an upper bound for the energies of two of the subclasses of Möbius ladder graphs and lower
Alper Bulut, Ilhan Hacioglu
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

Splines and wavelets on circulant graphs [PDF]

open access: yesApplied and Computational Harmonic Analysis, 2019
To appear in Appl. Comput. Harmon. Anal. (2017)
Kotzagiannidis, MS, Dragotti, PL
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

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

Rotational circulant graphs

open access: yesDiscrete Applied Mathematics, 2014
Final ...
Alison Thomson, Sanming Zhou
openaire   +2 more sources

Shortest Path Search Algorithm in Optimal Two-Dimensional Circulant Networks: Implementation for Networks-on-Chip

open access: yesIEEE Access, 2020
For a family of optimal two-dimensional circulant networks with an analytical description, two new improved versions of the shortest path search algorithm with a constant complexity estimate are obtained.
Emilia A. Monakhova   +2 more
doaj   +1 more source

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