Results 51 to 60 of about 178,682 (289)

On the Vertex-Connectivity of an Uncertain Random Graph

open access: yesIEEE Access, 2020
In many practical problems, randomness and uncertainty simultaneously appear in one complex system or network. When graph theory is applied to these problems, these complex systems or networks are usually represented by uncertain random graphs, in which ...
Hao Li, Xin Gao
doaj   +1 more source

On Omega Index and Average Degree of Graphs

open access: yesJournal of Mathematics, 2021
Average degree of a graph is defined to be a graph invariant equal to the arithmetic mean of all vertex degrees and has many applications, especially in determining the irregularity degrees of networks and social sciences.
Sadik Delen   +3 more
doaj   +1 more source

Characteristic Angles in the Wetting of an Angular Region: Deposit Growth [PDF]

open access: yes, 2003
As was shown in an earlier paper [1], solids dispersed in a drying drop migrate to the (pinned) contact line. This migration is caused by outward flows driven by the loss of the solvent due to evaporation and by geometrical constraint that the drop ...
D. Bensimon   +11 more
core   +3 more sources

On the Vertex-Degree Based Invariants of Digraphs

open access: yesDiscrete Mathematics Letters, 2021
Let $D=(V,A)$ be a digraphs without isolated vertices. A vertex-degree based invariant $I(D)$ related to a real function $φ$ of $D$ is defined as a summation over all arcs, $I(D) = \frac{1}{2}\sum_{uv\in A}{φ(d_u^+,d_v^-)}$, where $d_u^+$ (resp. $d_u^-$) denotes the out-degree (resp. in-degree) of a vertex $u$.
Hanyuan Deng   +4 more
openaire   +4 more sources

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

Investigating the properties of octane isomers by novel neighborhood product degree-based topological indices

open access: yesFrontiers in Physics
A topological index is a real number calculated from the structure of a chemical compound to describe its topology. The use of molecular descriptors has been increasing in recent years, helping to determine the physicochemical and biological properties ...
Muhammad Waheed Rasheed   +2 more
doaj   +1 more source

Topological indices are not necessarily invariant to graph labeling

open access: yesActa Chimica Slovenica, 2015
Each element of the Universal matrix U (vertex-degree vertex-distance weighted matrix) represents the mutual contribution of two vertices weighted for the vertex degrees and the distance between them.
Anton Perdih
doaj   +1 more source

PREFERENTIAL ATTACHMENT WITH FITNESS DEPENDENT CHOICE

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
We study the asymptotic behavior of the maximum degree in the preferential attachment tree model with a choice based on both the degree and fitness of a vertex.
Y.A. Malyshkin
doaj   +1 more source

The complexity of degree anonymization by vertex addition [PDF]

open access: yesTheoretical Computer Science, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bredereck, Robert   +5 more
openaire   +2 more sources

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

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