Results 31 to 40 of about 6,263,611 (271)

Resistance Distance in the Double Corona Based on R-Graph

open access: yesMathematics, 2019
Let G 0 be a connected graph on n vertices and m edges. The R-graph R ( G 0 ) of G 0 is a graph obtained from G 0 by adding a new vertex corresponding to each edge of G 0 and by joining each new vertex to the end
Li Zhang   +3 more
doaj   +1 more source

Individual resistance to difficulties during distance learning

open access: yesВестник Мининского университета, 2021
Introduction. The pandemic situation, the rapid transition to distance learning forms - all this was a serious test for participants in the educational environment.
N. I. Dunaeva, P. A. Egorova
doaj   +1 more source

The Extremal Cacti on Multiplicative Degree-Kirchhoff Index

open access: yesMathematics, 2019
For a graph G, the resistance distance r G ( x , y ) is defined to be the effective resistance between vertices x and y, the multiplicative degree-Kirchhoff index R ∗ ( G ) = ∑ { x , y } ⊂ V ( G ) d G ( x ) d G
Fangguo He, Zhongxun Zhu
doaj   +1 more source

Formulation of tunneling resistance between neighboring carbon nanotubes in polymer nanocomposites

open access: yesEngineering Science and Technology, an International Journal, 2021
We aim to express the tunneling resistance in polymer nanocomposites by carbon nanotube (CNT) concentration, interphase depth, CNT curliness, tunneling distance, interfacial tension, network portion and CNT size.
Yasser Zare, Kyong Yop Rhee
doaj   +1 more source

On the resistance distance and Kirchhoff index of a linear hexagonal (cylinder) chain [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2019
The resistance between two nodes in some resistor networks has been studied extensively by mathematicians and physicists. Let L n be a linear hexagonal chain with n  6-cycles.
Sumin Huang, Shuchao Li
semanticscholar   +1 more source

Further Results on the Resistance-Harary Index of Unicyclic Graphs

open access: yesMathematics, 2019
The Resistance-Harary index of a connected graph G is defined as R H ( G ) = ∑ { u , v } ⊆ V ( G ) 1 r ( u , v ) , where r ( u , v ) is the resistance distance between vertices u and v in G.
Jian Lu   +4 more
doaj   +1 more source

Theoretical and Computational Methods to Resistance Distances in Novel Graphs Operations

open access: yesIEEE Access, 2019
Motivated by the recent research on the computation of resistance distance, this paper aims to compute resistance distance in two classes of graphs, which are generated by three graphs.
Li Zhang, Jia-Bao Liu
doaj   +1 more source

Resistance Distance and Kirchhoff Index of Generalized Subdivision-Vertex and Subdivision-Edge Corona for Graphs

open access: yesIEEE Access, 2019
Let G be a connected graph. The subdivision graph S(G) of a graph (G) is the graph obtained by inserting a new vertex into every edge of G. The set of such new vertices is denoted by I(G).
Qun Liu
doaj   +1 more source

Bicyclic Graphs with the Second-Maximum and Third-Maximum Degree Resistance Distance

open access: yesJournal of Mathematics, 2021
Let G=V,E be a connected graph. The resistance distance between two vertices u and v in G, denoted by RGu,v, is the effective resistance between them if each edge of G is assumed to be a unit resistor.
Wenjie Ning, Kun Wang, Hassan Raza
doaj   +1 more source

Resistance distance in connected balanced digraphs

open access: yesDiscrete Applied Mathematics, 2023
Let $D = (V, E)$ be a strongly connected and balanced digraph with vertex set $V$ and arc set $E.$ The classical distance $d_{ij}^D$ from $i$ to $j$ in $D$ is the length of a shortest directed path from $i$ to $j$ in $D.$ Let $L$ be the Laplacian matrix of $D$ and $ L^{\dagger} = ( l_{ij}^{\dagger} )$ be the Moore-Penrose inverse of $L.$ The resistance
Balakrishnan, R.   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy