Results 41 to 50 of about 96,278 (280)

On the Weak Reconstruction of Strong Product Graphs

open access: yesElectronic Notes in Discrete Mathematics, 2003
We prove that any nontrivial connected strong product graph can be uniquely reconstructed from each of its one vertex deleted subgraphs.
Blaz Zmazek, Janez Zerovnik
openaire   +2 more sources

NZ‐flows in strong products of graphs

open access: yesJournal of Graph Theory, 2010
AbstractWe prove that the strong product G1⊠ G2 of G1 and G2 is ℤ3‐flow contractible if and only if G1⊠ G2 is not T⊠ K2, where T is a tree (we call T⊠ K2 a K4‐tree). It follows that G1⊠ G2 admits an NZ 3 ‐flow unless G1⊠ G2 is a K4 ‐tree. We also give a constructive proof that yields a polynomial algorithm whose output is an NZ 3‐flow if G1⊠ G2 is not ...
Wilfried Imrich   +3 more
openaire   +3 more sources

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

Investigations in the semi-strong product of graphs and bootstrap percolation [PDF]

open access: yes, 2023
The semi-strong product of graphs G and H is a way of forming a new graph from the graphs G and H. The vertex set of the semi-strong product is the Cartesian product of the vertex sets of G and H, V(G) x V(H).
McCall, Kevin J
core   +2 more sources

Numerical invariants and the strong product of graphs [PDF]

open access: yes, 1973
Three numerical invariants of graphs—the independence number, the cliquecovering number, and the Rosenfeld number—are studied in relation to themselves and to the strong product of two graphs.
Hales, R.S
core   +1 more source

A Novel Study of Graphs Based on m-Polar Cubic Structures

open access: yesJournal of Function Spaces, 2022
By combining the notions of interval-valued m-polar fuzzy graphs and m-polar fuzzy graphs, the notion of m-polar cubic graphs is first introduced. Then, the degree of a vertex in m-polar cubic graphs and complete m-polar cubic graphs is defined.
G. Muhiuddin   +4 more
doaj   +1 more source

Bounds for the pebbling number of product graphs [PDF]

open access: yesTransactions on Combinatorics, 2022
Let $G$ be a connected graph. Given a configuration of a fixed number of pebbles on the vertex set of $G$, a pebbling move on $G$ is the process of removing two pebbles from a vertex and adding one pebble on an adjacent vertex. The pebbling number of $G$,
Nopparat Pleanmani   +2 more
doaj   +1 more source

Strong Total Monophonic Problems in Product Graphs, Networks, and Its Computational Complexity

open access: yesJournal of Mathematics, 2022
Let G be a graph with vertex set as VG and edge set as EG which is simple as well as connected. The problem of strong total monophonic set is to find the set of vertices T⊆VG, which contains no isolated vertices, and all the vertices in VG\T lie on a ...
Eddith Sarah Varghese   +5 more
doaj   +1 more source

The optimal strong radius and optimal strong diameter of the Cartesian product graphs [PDF]

open access: yes, 2011
NSFC [10831001]; Fujian Provincial Department of Education [JA10244]Let D be a strong digraph. The strong distance between two vertices u and v in D. denoted by sd(D)(u.
郭晓峰   +3 more
core   +3 more sources

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