Results 31 to 40 of about 473,067 (264)

Various Product on Multi Fuzzy Graphs

open access: yesRatio Mathematica, 2022
In this paper, the definition of complement of multi fuzzy graph, direct sum of two multi fuzzy graphs are given and derived some theorems related to them.
R Muthuraj, K Krithika, S Revathi
doaj   +1 more source

Local strong rainbow connection number of corona product between cycle graphs

open access: yesIndonesian Journal of Combinatorics, 2023
A rainbow geodesic is a shortest path between two vertices where all edges are colored differently. An edge coloring in which any pair of vertices with distance up to d, where d is a positive integer that can be connected by a rainbow geodesic is called ...
Khairunnisa N. Afifah, Kiki A. Sugeng
doaj   +1 more source

Bounds on the Twin-Width of Product Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2023
Twin-width is a graph width parameter recently introduced by Bonnet, Kim, Thomass\'{e} & Watrigant. Given two graphs $G$ and $H$ and a graph product $\star$, we address the question: is the twin-width of $G\star H$ bounded by a function of the twin ...
William Pettersson, John Sylvester
doaj   +1 more source

Retracts of strong products of graphs

open access: yesDiscrete Mathematics, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wilfried Imrich, Sandi Klavzar
openaire   +1 more source

Hamiltonian Cycles in Strong Products of Graphs [PDF]

open access: yesCanadian Mathematical Bulletin, 1979
Abstract. Let denote the graph (k times) where is the strong product of the two graphs G and H. In this paper we prove the conjecture of J. Zaks [3]: For every connected graph G with at least two vertices there exists an integer k = k(G) for which the graph is hamiltonian.
Bermond, J. C.   +2 more
openaire   +3 more sources

Strong products of Kneser graphs

open access: yesDiscrete Mathematics, 1994
For a (simple, undirected) graph \(G = (V(G), E(G))\), let \(\chi(G)\) and \(\omega(G)\) denote the chromatic number and the clique number, respectively. A subgraph \(H\) of \(G\) is a retract of \(G\) iff there is an edge-preserving map \(h : V(G) \to V(H)\) with \(h(x) = x\) for all \(x \in V(H)\).
Sandi Klavzar, Uros Milutinovic
openaire   +1 more source

On bounds for topological descriptors of φ-sum graphs

open access: yesJournal of Taibah University for Science, 2020
The properties of chemical compounds are very important for the studies of the non-isomorphism phenomenon's related to the molecular graphs. Topological indices (TIs) are one of the mathematical tools which are used to study these properties.
Yu-Ming Chu   +3 more
doaj   +1 more source

On the (adjacency) metric dimension of corona and strong product graphs and their local variants: Combinatorial and computational results [PDF]

open access: yesDiscrete Applied Mathematics, 2013
The metric dimension is quite a well-studied graph parameter. Recently, the adjacency metric dimension and the local metric dimension have been introduced. We combine these variants and introduce the local adjacency metric dimension.
H. Fernau, J. A. Rodríguez-Velázquez
semanticscholar   +1 more source

Some Applications of Strong Product [PDF]

open access: yesMathematics Interdisciplinary Research, 2018
Let G and H be graphs. The strong product GH of graphs G and H is the graph with vertex set V(G)V(H) and u=(u1, v1) is adjacent with v= (u2, v2) whenever (v1 = v2 and u1 is adjacent with u2) or (u1 = u2 and v1 is adjacent with v2) or (u1 is adjacent ...
Mostafa Tavakoli   +2 more
doaj   +1 more source

Theory and Applications of Fermatean Neutrosophic Graphs [PDF]

open access: yesNeutrosophic Sets and Systems, 2022
Yager et. al. defined a q-rung orthopair fuzzy sets as a new general class of Pythagorean fuzzy set in which the sum of the qth power of the support for and support against is bonded by one. Tapan et. al. extended the concept of intuitionistic fuzzy sets
Said Broumi   +4 more
doaj   +1 more source

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