Results 261 to 270 of about 147,337 (298)
Some of the next articles are maybe not open access.
Ars Comb., 1997
The {irregularity} of a graph \(G=(V,E)\) is defined as \(\text{irr} (G)=\sum _{xy\in E} |\text{deg}(x)-\text{deg}(y) |\). Upper bounds on the irregularity of trees, bipartite graphs, triangle-free graphs and general graphs are proven. In particular it is shown that \(\text{irr} (G)< \frac {4n^3}{27}\) for every graph \(G\) on \(n\) vertices and that ...
openaire +2 more sources
The {irregularity} of a graph \(G=(V,E)\) is defined as \(\text{irr} (G)=\sum _{xy\in E} |\text{deg}(x)-\text{deg}(y) |\). Upper bounds on the irregularity of trees, bipartite graphs, triangle-free graphs and general graphs are proven. In particular it is shown that \(\text{irr} (G)< \frac {4n^3}{27}\) for every graph \(G\) on \(n\) vertices and that ...
openaire +2 more sources
On the σ-irregularity and the inverse irregularity problem
Applied Mathematics and Computation, 2023Darko Dimitrov, Dragan Stevanovic
exaly
Evaluation of menstrual irregularities after COVID-19 vaccination: Results of the MECOVAC survey
Open Medicine (Poland), 2022Giovanni Veronesi +2 more
exaly
Origin and Distribution of Daytime Electron Density Irregularities in the Low-Latitude F Region
Journal of Geophysical Research: Space Physics, 2020Woo Kyoung Lee +2 more
exaly
Irregularity index: A new border irregularity measure for cutaneous melanocytic lesions
Medical Image Analysis, 2003Tim Lee, David I McLean, M Stella Atkins
exaly
Handling data irregularities in classification: Foundations, trends, and future challenges
Pattern Recognition, 2018Swagatam Das +2 more
exaly