Results 51 to 60 of about 5,172,585 (353)

Graph equations for line graphs and total graphs

open access: yesDiscrete Mathematics, 1975
AbstractAll pairs (G,H) of graphs G,H satisfying L(G) = T(H) are determined. The “graph equation“ L(G)= T(H) is also solved.
Dragos M. Cvetkovic, Slobodan K. Simic
openaire   +1 more source

On the application of line graphs in quantitative structure-property studies [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
Let G be a molecular graph possessing m0(G) edges. Let m1(G) be the number of edges of the line graph L(G) of G, known as the Bertz index. Let m2(G) be the number of edges of the line graph of L(G), etc.
Gutman Ivan, Tomović Željko
doaj   +1 more source

A Tabu Search Based Approach for Graph Layout [PDF]

open access: yes, 2014
This paper describes an automated tabu search based method for drawing general graph layouts with straight lines. To our knowledge, this is the first time tabu methods have been applied to graph drawing.
Rodgers, Peter, Dib, Fadi
core   +1 more source

The n-th Power Signed Graphs-II [PDF]

open access: yes, 2010
For standard terminology and notion in graph theory we refer the reader to Harary [6]; the non-standard will be given in this paper as and when required.
Reddyy, P. Siva Kota   +2 more
core   +1 more source

The study of line graphs of subdivision graphs of some rooted product graphs via K-Banhatti indices

open access: yesInternational Journal of Mathematics for Industry, 2023
The degree-based topological indices are numerical graph invariants that are used to link a molecule’s structural characteristics to its physical, and chemical characteristics.
K. J. Gowtham, N. Narahari
doaj   +1 more source

Detection and classification of transmission line transient faults based on graph convolutional neural network

open access: yesCSEE Journal of Power and Energy Systems, 2021
We present a novel transient fault detection and classification approach in power transmission lines based on graph convolutional neural network. Compared with the existing techniques, the proposed approach considers explicit spatial information in ...
Houjie Tong   +5 more
semanticscholar   +1 more source

Expert interpretation of bar and line graphs: The role of graphicacy in reducing the effect of graph format.

open access: yes, 2015
The distinction between informational and computational equivalence of representations, first articulated by Larkin and Simon (1987) has been a fundamental principle in the analysis of diagrammatic reasoning which has been supported empirically on ...
Ali, Nadia   +5 more
core   +1 more source

Some Properties of Regular Line Graphs

open access: yesمجلة علوم ذي قار, 2019
In this paper, the concept of regular line graph has been introduced. The maximum number of vertices with different degrees in the regular line graphs has also been studied.
Akram Attar
doaj   +4 more sources

The M-polynomial of line graph of subdivision graphs

open access: yesCommunications Faculty Of Science University of Ankara Series A1Mathematics and Statistics, 2019
Three composite graphs Ladder graph (L_{n}), Tadpole graph (T_{n,k}) and Wheel graph (W_{n}) are graceful graphs, which have different applications in electrical, electronics, wireless communication etc. In this report, we first determine M-polynomial of
S. Mondal, Nilanjan De, A. Pal
semanticscholar   +1 more source

Line graph embedding of co-intersection graph of ideals of commutative rings

open access: yesAKCE International Journal of Graphs and Combinatorics
This research paper focuses on the co-intersection graph of a commutative ring [Formula: see text]. The co-intersection graph of [Formula: see text] denoted by [Formula: see text] is a simple graph with vertices that are non-trivial ideals of [Formula ...
Ali Al Khabyah   +4 more
doaj   +1 more source

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