Results 21 to 30 of about 676 (119)

Complement of the generalized total graph of fields

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Let R be a commutative ring and H be a multiplicative prime subset of R. The generalized total graph is the undirected simple graph with vertex set R and two distinct vertices x and y are adjacent if For a field F, is the only multiplicative prime subset
T. Tamizh Chelvam, M. Balamurugan
doaj   +1 more source

Pancyclic graphs II

open access: yesJournal of Combinatorial Theory, Series B, 1976
Abstract A graph G with vertex set V(G) and edge set E(G) is pancyclic if it contains cycles of all lengths l, 3 ≤ l ≤ | V(G) |. Theorem . Let G be Hamiltonian and suppose that |E(G)| ≥ n 2 4 , where n = |V(G)|. Then G is either pancyclic or else is the complete bipartite graph K n 2 , n 2 .
Bondy, J.A, Ingleton, A.W
openaire   +2 more sources

Fan's condition on induced subgraphs for circumference and pancyclicity [PDF]

open access: yesOpuscula Mathematica, 2017
Let \(\mathcal{H}\) be a family of simple graphs and \(k\) be a positive integer. We say that a graph \(G\) of order \(n\geq k\) satisfies Fan's condition with respect to \(\mathcal{H}\) with constant \(k\), if for every induced subgraph \(H\) of \(G ...
Wojciech Wideł
doaj   +1 more source

Computing Edge Weights of Magic Labeling on Rooted Products of Graphs

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
Labeling of graphs with numbers is being explored nowadays due to its diverse range of applications in the fields of civil, software, electrical, and network engineering. For example, in network engineering, any systems interconnected in a network can be converted into a graph and specific numeric labels assigned to the converted graph under certain ...
Jia-Bao Liu   +3 more
wiley   +1 more source

On pancyclism in hamiltonian graphs

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kouider, Mekkia, Marczyk, Antoni
openaire   +2 more sources

Forbidden Pairs and (k,m)-Pancyclicity

open access: yesDiscussiones Mathematicae Graph Theory, 2017
A graph G on n vertices is said to be (k, m)-pancyclic if every set of k vertices in G is contained in a cycle of length r for each r ∈ {m, m+1, . . . , n}.
Crane Charles Brian
doaj   +1 more source

Local properties of graphs that induce global cycle properties [PDF]

open access: yesOpuscula Mathematica
A graph \(G\) is locally Hamiltonian if \(G[N(v)]\) is Hamiltonian for every vertex \(v\in V(G)\). In this note, we prove that every locally Hamiltonian graph with maximum degree at least \(|V(G)| - 7\) is weakly pancyclic.
Yanyan Wang, Xiaojing Yang
doaj   +1 more source

Geodesic-pancyclic graphs

open access: yesDiscrete Applied Mathematics, 2007
A graph \(G\) is said to be geodesic-pancyclic if every path of length \(d\) between any two vertices \(u\) and \(v\) at distance \(d\) (i.e., the shortest path between \(u\) and \(v\)) can be completed to a cycle of length \(\ell\) for every \(\ell=\max\{2d,3\},\dots,n\).
Hung-Chang,C. A.   +3 more
openaire   +2 more sources

A Fan-Type Heavy Pair Of Subgraphs For Pancyclicity Of 2-Connected Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2016
Let G be a graph on n vertices and let H be a given graph. We say that G is pancyclic, if it contains cycles of all lengths from 3 up to n, and that it is H-f1-heavy, if for every induced subgraph K of G isomorphic to H and every two vertices u, v ∈ V (K)
Wideł Wojciech
doaj   +1 more source

Edge pancyclic derangement graphs

open access: yes, 2022
7 pages, 1 ...
Lv, Zequn, Cao, Mengyu, Lu, Mei
openaire   +2 more sources

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