Results 1 to 10 of about 2,153 (243)

Enumeration of the Multiplicative Degree-Kirchhoff Index in the Random Polygonal Chains [PDF]

open access: yesMolecules, 2022
Multiplicative degree-Kirchhoff index is a very interesting topological index. In this article, we compute analytical expression for the expected value of the Multiplicative degree-Kirchhoff index in a random polygonal. Based on the result above, we also
Wanlin Zhu, Xianya Geng
doaj   +2 more sources

The Kirchhoff Index of Some Combinatorial Networks [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2015
The Kirchhoff index Kf(G) is the sum of the effective resistance distances between all pairs of vertices in G. The hypercube Qn and the folded hypercube FQn are well known networks due to their perfect properties. The graph G∗, constructed from G, is the
Jia-Bao Liu   +3 more
doaj   +3 more sources

Bounds for the Kirchhoff Index of Bipartite Graphs [PDF]

open access: yesJournal of Applied Mathematics, 2012
A -bipartite graph is a bipartite graph such that one bipartition has m vertices and the other bipartition has n vertices. The tree dumbbell consists of the path together with a independent vertices adjacent to one pendent vertex of and b independent ...
Yujun Yang
doaj   +4 more sources

Research on the Consensus Convergence Rate of Multi-Agent Systems Based on Hermitian Kirchhoff Index Measurement [PDF]

open access: yesEntropy
Multi-agent systems (MAS) typically model interaction topologies using directed or undirected graphs when analyzing consensus convergence rates. However, as system complexity increases, purely directed or undirected networks may be insufficient to ...
He Deng, Tingzeng Wu
doaj   +2 more sources

Some Bounds for the Kirchhoff Index of Graphs [PDF]

open access: yesAbstract and Applied Analysis, 2014
The resistance distance between two vertices of a connected graph G is defined as the effective resistance between them in the corresponding electrical network constructed from G by replacing each edge of G with a unit resistor.
Yujun Yang
doaj   +3 more sources

Evolution of Robustness in Growing Random Networks [PDF]

open access: yesEntropy, 2023
Networks are widely used to model the interaction between individual dynamic systems. In many instances, the total number of units and interaction coupling are not fixed in time, and instead constantly evolve.
Melvyn Tyloo
doaj   +2 more sources

Computing the Laplacian spectrum and Wiener index of pentagonal-derivation cylinder/Möbius network [PDF]

open access: yesHeliyon
The Laplacian spectrum significantly contributes the study of the structural features of non-regular networks. Actually, it emphasizes the interaction among the network eigenvalues and their structural properties.
Umar Ali   +3 more
doaj   +2 more sources

On Laplacian resolvent energy of graphs [PDF]

open access: yesTransactions on Combinatorics, 2023
Let $G$ be a simple connected graph of order $n$ and size $m$. The matrix $L(G)=D(G)-A(G)$ is the Laplacian matrix of $G$, where $D(G)$ and $A(G)$ are the degree diagonal matrix and the adjacency matrix, respectively. For the graph $G$, let $d_{1}\geq d_{
Sandeep Bhatnagar   +2 more
doaj   +1 more source

Kirchhoff Index and Degree Kirchhoff Index of Tetrahedrane-Derived Compounds

open access: yesSymmetry, 2023
Tetrahedrane-derived compounds consist of n crossed quadrilaterals and possess complex three-dimensional structures with high symmetry and dense spatial arrangements. As a result, these compounds hold great potential for applications in materials science, catalytic chemistry, and other related fields.
Duoduo Zhao   +4 more
openaire   +1 more source

On the Kirchhoff matrix, a new Kirchhoff index and the Kirchhoff energy [PDF]

open access: yesJournal of Inequalities and Applications, 2013
The main purpose of this paper is to define and investigate the Kirchhoff matrix, a new Kirchhoff index, the Kirchhoff energy and the Kirchhoff Estrada index of a graph. In addition, we establish upper and lower bounds for these new indexes and energy. In the final section, we point out a new possible application area for graphs by considering this new
CANGÜL, İSMAİL NACİ   +3 more
openaire   +5 more sources

Home - About - Disclaimer - Privacy