Results 11 to 20 of about 696,277 (238)

Narumi–Katayama index of the subdivision graphs

open access: yesJournal of Taibah University for Science, 2018
Subdivision is an important aspect in graph theory which allows one to calculate properties of some complicated graphs in terms of some easier graphs. Recently, the notion of r-subdivision was similarly defined as a quite useful generalization by adding ...
Merve Ascioglu, Ismail Naci Cangul
doaj   +4 more sources

Collaborative representation and confidence-driven semi-supervised learning for hyperspectral image classification [PDF]

open access: yesScientific Reports
Hyperspectral image (HSI) classification faces challenges in diverse scenarios due to spectral-spatial complexity and class imbalance. Existing methods lack generalizability.
Yutian Chen   +2 more
doaj   +2 more sources

Computing Certain Topological Indices of the Line Graphs of Subdivision Graphs of Some Rooted Product Graphs

open access: yesMathematics, 2019
In this work, we study the degree-based topological invariants, and the general sum-connectivity, A B C 4 , G A 5 , general Zagreb, G A , generalized Randić, and A B C indices of the line graphs of some rooted product ...
Adnan Aslam   +4 more
doaj   +3 more sources

Structural analysis of transformations of subdivision graph via structure descriptors

open access: yesAin Shams Engineering Journal
For a graph X=(V(X),E(X)), a wide range of transformations are possible. A graph X can be converted into a new graph by adding vertices or edges following certain criteria.
Rashad Ismail   +5 more
doaj   +2 more sources

Domination Subdivision and Domination Multisubdivision Numbers of Graphs [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2019
The domination subdivision number sd(G) of a graph G is the minimum number of edges that must be subdivided (where an edge can be subdivided at most once) in order to increase the domination number of G. It has been shown [10] that sd(T) ≤ 3 for any tree
Dettlaff Magda   +2 more
doaj   +2 more sources

An interpolatory subdivision algorithm for surfaces over arbitrary triangulations [PDF]

open access: yes, 1992
In this paper, an interpolatory subdivision algorithm for surfaces over ar-bitrary triangulations is introduced and its convergence properties over nonuni-form triangulations studied.
Qu, R
core   +6 more sources

Stacks, Queues and Tracks: Layouts of Graph Subdivisions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
A k-stack layout (respectively, k-queuelayout) of a graph consists of a total order of the vertices, and a partition of the edges into k sets of non-crossing (non-nested) edges with respect to the vertex ordering.
Vida Dujmović, David R. Wood
doaj   +2 more sources

Zagreb Indices and Coindices of Total Graph, Semi-Total Point Graph and Semi-Total Line Graph of Subdivision Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
Expressions for the Zagreb indices and coindices of the total graph, semi-total point graph and of semi-total line graph of subdivision graphs in terms of the parameters of the parent graph are obtained, thus generalizing earlier existing results.
Harishchandra S. Ramane   +2 more
doaj   +1 more source

Multiplicative Zagreb indices and coindices of some derived graphs [PDF]

open access: yesOpuscula Mathematica, 2016
In this note, we obtain the expressions for multiplicative Zagreb indices and coindices of derived graphs such as a line graph, subdivision graph, vertex-semitotal graph, edge-semitotal graph, total graph and paraline graph.
Bommanahal Basavanagoud, Shreekant Patil
doaj   +1 more source

On incidence coloring of graph fractional powers [PDF]

open access: yesOpuscula Mathematica, 2022
For any \(n\in \mathbb{N}\), the \(n\)-subdivision of a graph \(G\) is a simple graph \(G^\frac{1}{n}\) which is constructed by replacing each edge of \(G\) with a path of length \(n\). The \(m\)-th power of \(G\) is a graph, denoted by \(G^m\), with the
Mahsa Mozafari-Nia, Moharram N. Iradmusa
doaj   +1 more source

Home - About - Disclaimer - Privacy