Results 31 to 40 of about 172,035 (261)

Random Oxford graphs

open access: yesStochastic Processes and their Applications, 2005
Inspired by a concept in comparative genomics, we investigate properties of randomly chosen members of G_1(m,n,t), the set of bipartite graphs with $m$ left vertices, n right vertices, t edges, and each vertex of degree at least one. We give asymptotic results for the number of such graphs and the number of $(i,j)$ trees they contain.
Blasiak, Jonah, Durrett, Rick
openaire   +2 more sources

Zero-One Law for Connectivity in Superposition of Random Key Graphs on Random Geometric Graphs

open access: yesDiscrete Dynamics in Nature and Society, 2015
We study connectivity property in the superposition of random key graph on random geometric graph. For this class of random graphs, we establish a new version of a conjectured zero-one law for graph connectivity as the number of nodes becomes unboundedly
Y. Tang, Q. L. Li
doaj   +1 more source

Random perfect graphs

open access: yesRandom Structures & Algorithms, 2018
We investigate the asymptotic structure of a random perfect graph Pn sampled uniformly from the set of perfect graphs on vertex set . Our approach is based on the result of Prömel and Steger that almost all perfect graphs are generalised split graphs, together with a method to generate such graphs almost uniformly.
McDiarmid, C, Yolov, N
openaire   +2 more sources

The effects of random geometric graph structure and clustering on localizability of sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Graph rigidity provides the conditions of unique localizability for cooperative localization of wireless ad hoc and sensor networks. Specifically, redundant rigidity and 3-connectivity are necessary and sufficient conditions for unique localizability of ...
Tolga Eren
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

Navigability of Random Geometric Graphs in the Universe and Other Spacetimes

open access: yesScientific Reports, 2017
Random geometric graphs in hyperbolic spaces explain many common structural and dynamical properties of real networks, yet they fail to predict the correct values of the exponents of power-law degree distributions observed in real networks.
William Cunningham   +2 more
doaj   +1 more source

The number of planar graphs and properties of random planar graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
We show an asymptotic estimate for the number of labelled planar graphs on $n$ vertices. We also find limit laws for the number of edges, the number of connected components, and other parameters in random planar graphs.
Omer Gimenez, Marc Noy
doaj   +1 more source

Random Graphs

open access: yesThe Annals of Mathematical Statistics, 1959
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Fast Generation of Sparse Random Kernel Graphs. [PDF]

open access: yesPLoS ONE, 2015
The development of kernel-based inhomogeneous random graphs has provided models that are flexible enough to capture many observed characteristics of real networks, and that are also mathematically tractable.
Aric Hagberg, Nathan Lemons
doaj   +1 more source

Bounding Extremal Degrees of Edge-Independent Random Graphs Using Relative Entropy

open access: yesEntropy, 2016
Edge-independent random graphs are a model of random graphs in which each potential edge appears independently with an individual probability. Based on the relative entropy method, we determine the upper and lower bounds for the extremal vertex degrees ...
Yilun Shang
doaj   +1 more source

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