Results 21 to 30 of about 8,162 (190)

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

Parameters of Integral Circulant Graphs and Periodic Quantum Dynamics [PDF]

open access: yes, 2007
The intention of the paper is to move a step towards a classification of network topologies that exhibit periodic quantum dynamics. We show that the evolution of a quantum system, whose hamiltonian is identical to the adjacency matrix of a circulant ...
Centrum Voor Wiskunde En Informatica   +3 more
core   +3 more sources

Automorphism Groups of Rational Circulant Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2012
The paper concerns the automorphism groups of Cayley graphs over cyclic groups which have a rational spectrum (rational circulant graphs for short). With the aid of the techniques of Schur rings it is shown that the problem is equivalent to consider the automorphism groups of orthogonal group block structures of cyclic groups.
Klin, Mikhail, Kovács, István
openaire   +3 more sources

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

On Hamilton decompositions of infinite circulant graphs [PDF]

open access: yes, 2017
The natural infinite analogue of a (finite) Hamilton cycle is a two-way-infinite Hamilton path (connected spanning 2-valent subgraph). Although it is known that every connected 2k-valent infinite circulant graph has a two-way-infinite Hamilton path ...
Bryant, Darryn   +3 more
core   +2 more sources

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

Graphs having no quantum symmetry [PDF]

open access: yes, 2006
We consider circulant graphs having $p$ vertices, with $p$ prime. To any such graph we associate a certain number $k$, that we call type of the graph. We prove that for $p>>k$ the graph has no quantum symmetry, in the sense that the quantum automorphism ...
Banica, Teodor   +2 more
core   +4 more sources

On Dispersability of Some Circulant Graphs [PDF]

open access: yesJournal of Graph Algorithms and Applications, 2022
20 pages, 14 figures, accepted for publication in the Journal of Graph Algorithms and ...
Kainen, Paul C.   +2 more
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

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