Results 61 to 70 of about 2,422,838 (348)

The Odd Harmonious Labeling of Layered Graphs

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2023
Graphs that have the properties of odd harmonious labeling are odd harmonious graphs. The research objective of this paper is to obtain odd harmonious labeling on layered graph C(x,y) and layered graph D(x,y).
Fery Firmansah
doaj   +1 more source

Graphs with average labellings

open access: yesDiscrete Mathematics, 2001
AbstractFor a given simple graph an average labelling is defined. The graphs with average labellings and all the admissible average labellings for such graphs are characterized.
Roman Soták, Matúš Harminc
openaire   +2 more sources

On the number of unlabeled vertices in edge-friendly labelings of graphs [PDF]

open access: yes, 2011
Let $G$ be a graph with vertex set $V(G)$ and edge set $E(G)$, and $f$ be a 0-1 labeling of $E(G)$ so that the absolute difference in the number of edges labeled 1 and 0 is no more than one. Call such a labeling $f$ \emph{edge-friendly}.
Cahit   +8 more
core   +2 more sources

Swapping Labeled Tokens on Graphs [PDF]

open access: yesTheoretical Computer Science, 2014
Consider a puzzle consisting of n tokens on an n-vertex graph, where each token has a distinct starting vertex and a distinct target vertex it wants to reach, and the only allowed transformation is to swap the tokens on adjacent vertices. We prove that every such puzzle is solvable in O(n 2) token swaps, and thus focus on the problem of minimizing the ...
Yamanaka, Katsuhisa   +9 more
openaire   +6 more sources

Decomposition of Certain Complete Graphs and Complete Multipartite Graphs into Almost-bipartite Graphs and Bipartite Graphs

open access: yesTheory and Applications of Graphs, 2020
In his classical paper [14], Rosa introduced a hierarchical series of labelings called ρ, σ, β and α labeling as a tool to settle Ringel’s Conjecture which states that if T is any tree with m edges then the complete graph K2m+1 can be decomposed into 2m +
G. Sethuraman, M. Sujasree
doaj   +1 more source

On the Implicit Graph Conjecture [PDF]

open access: yes, 2016
The implicit graph conjecture states that every sufficiently small, hereditary graph class has a labeling scheme with a polynomial-time computable label decoder.
Chandoo, Maurice
core   +3 more sources

A Study on Topological Integer Additive Set-Labeling of Graphs [PDF]

open access: yes, 2015
A set-labeling of a graph $G$ is an injective function $f:V(G)\to \mathcal{P}(X)$, where $X$ is a finite set and a set-indexer of $G$ is a set-labeling such that the induced function $f^{\oplus}:E(G)\to \mathcal{P}(X)-\{\emptyset\}$ defined by $f^{\oplus}
Germina, K. A., Sudev, N. K.
core   +3 more sources

On labeled graph $C^*$-algebras

open access: yesRocky Mountain Journal of Mathematics, 2020
Given a directed graph $E$ and a labeling $\mathcal{L}$, one forms the labeled graph $C^*$-algebra by taking a weakly left--resolving labeled space $(E, \mathcal{L}, \mathcal{B})$ and considering a universal generating family of partial isometries and projections.
Banjade, Debendra P., Ephrem, Menassie
openaire   +4 more sources

Lucky labelings of graphs

open access: yesInformation Processing Letters, 2009
Suppose the vertices of a graph G were labeled arbitrarily by positive integers, and let S(v) denote the sum of labels over all neighbors of vertex v. A labeling is lucky if the function S is a proper coloring of G, that is, if we have S(u) S(v) whenever u and v are adjacent.
Czerwiński, Sebastian   +2 more
openaire   +2 more sources

Canonical Labelling of Site Graphs [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
In Proceedings CompMod 2013, arXiv:1306 ...
Michael Pedersen   +2 more
openaire   +4 more sources

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