Results 221 to 230 of about 6,009 (241)

The Acceptability of Implanon in Muslim-Majority Asian Countries: A Systematic Review. [PDF]

open access: yesIran J Public Health
Nik Azis NA   +9 more
europepmc   +1 more source

Variations in sleep duration and timing: weekday and seasonal variations in sleep are common in an analysis of 73 million nights from an objective sleep tracker. [PDF]

open access: yesSleep
Scott H   +12 more
europepmc   +1 more source

Irregularity of Graphs

MATCH Communications in Mathematical and in Computer Chemistry, 2022
Summary: The irregularity of a graph is the sum of the absolute values of the differences of degrees of pairs of adjacent vertices. The extremal graph with minimal irregularity among trees of order \(n\) with maximum degree \(\Delta\) and the second maximum degree \(\Delta_1\) are determined, as well as unicyclic graphs of order \(n\) with girth \(g ...
Dorjsembe, Shiikhar   +4 more
openaire   +2 more sources

The Size of Maximally Irregular Graphs and Maximally Irregular Triangle-Free Graphs

Graphs and Combinatorics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Fengxia, Zhang, Zhao, Meng, Jixiang
openaire   +1 more source

Recognizing Visibility Graphs of Triangulated Irregular Networks [PDF]

open access: possibleFundamenta Informaticae, 2021
A Triangulated Irregular Network (TIN) is a data structure that is usually used for representing and storing monotone geographic surfaces, approximately. In this representation, the surface is approximated by a set of triangular faces whose projection on the XY-plane is a triangulation.
Boomari, Hossein   +2 more
openaire   +2 more sources

Irregularity of Sierpinski graph

Journal of Discrete Mathematical Sciences and Cryptography, 2019
AbstractA graph is regular if all of its vertices have equal degree and otherwise, it is an irregular graph. Irregularity topological indices are used for studying irregularly of irregular graphs.
Shin Min Kang   +3 more
openaire   +1 more source

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