Results 41 to 50 of about 6,009 (241)

LOCAL IRREGULARITY VERTEX COLORING OF BICYCLIC GRAPH FAMILIES

open access: yesBarekeng
The graph in this research is a simple and connected graph with  as vertex set and  as an edge set. We used deductive axiomatic and pattern recognition method.
Arika Indah Kristiana   +5 more
doaj   +1 more source

Weighted Graph Irregularity Indices Defined on the Vertex Set of a Graph

open access: yesJournal of Mathematics, 2022
Performing comparative tests, some possibilities of constructing novel degree- and distance-based graph irregularity indices are investigated. Evaluating the discrimination ability of different irregularity indices, it is demonstrated (using examples ...
Zainab Alsheekhhussain   +2 more
doaj   +1 more source

Group Irregular Labelings of Disconnected Graphs

open access: yesContributions to Discrete Mathematics, 2017
We investigate the \textit{group irregularity strength} (sg(G)) of graphs, i.e. the smallest value of s such that taking any Abelian group \gr of order s, there exists a function f:E(G)→\gr such that the sums of edge labels at every vertex are distinct. We give the exact values and bounds on sg(G) for chosen families of disconnected graphs.
Anholcer, Marcin   +1 more
openaire   +3 more sources

Minimum total irregularity index of tricyclic graphs

open access: yesKuwait Journal of Science, 2023
The quantitative characterization of the topological structures of irregular graphs has been demonstrated through several irregularity measures. In the literature, not only different chemical and physical properties can be well comprehended but also ...
Hassan Ahmed, Akhlaq Ahmad Bhatti
doaj   +1 more source

Inclusive Local Irregularity Vertex Coloring In Grid Graph Family

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi
Let  is a simple graph and connected where  is vertex set and  is edge set. A maping  as vertex k- labeling and function :  is inclusive local irregularity vertex coloring, with .
Arika Indah Kristiana   +5 more
doaj   +1 more source

The total irregularity of a graph [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
Graph ...
Hosam Abdo, Stephan Brandt, D. Dimitrov
doaj   +1 more source

Odd Fibonacci edge irregular labeling for some trees obtained from subdivision and vertex identification operations

open access: yesمجلة بغداد للعلوم, 2023
Let G be a graph with p vertices and q edges and  be an injective function, where k is a positive integer. If the induced edge labeling   defined by for each is a bijection, then the labeling f is called an odd Fibonacci edge irregular labeling of G.
M. Uma Devi, M. Kamaraj, S. Arockiaraj
doaj   +1 more source

TOTAL EDGE IRREGULARITY STRENGTH DARI GRAF K_n-{e}

open access: yesE-Jurnal Matematika, 2019
In this paper we determine the total edge irregularity strength of , that is a complete graph in which one of its edge has been removed. To do so, we make three cases.
MUARDI - ,, QURRATUL AINI, , IRWANSYAH
doaj   +1 more source

On the edge irregularity strength of corona product of cycle with isolated vertices

open access: yesAKCE International Journal of Graphs and Combinatorics, 2016
In this paper, we investigate the new graph characteristic, the edge irregularity strength, denoted as es, as a modification of the well known irregularity strength, total edge irregularity strength and total vertex irregularity strength. As a result, we
I. Tarawneh, R. Hasni, A. Ahmad
doaj   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

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