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Models for generating simple graphs are important in the study of real-world complex networks. A well established example of such a model is the erased configuration model, where each node receives a number of half-edges that are connected…

概率论 · 数学 2015-09-25 Pim van der Hoorn , Nelly Litvak

The Ising model on a $restricted$ scale-free network (SFN) has been studied employing Monte Carlo simulations. This network is described by a power-law degree distribution in the form $P(k)~k^{-\alpha}$, and is called restricted, because…

统计力学 · 物理学 2023-05-24 R. A. Dumer , M. Godoy

In this article, we propose a growing network model based on an optimal policy involving both topological and geographical measures. In this model, at each time step, a new node, having randomly assigned coordinates in a $1 \times 1$…

物理与社会 · 物理学 2007-05-23 Yan-Bo Xie , Tao Zhou , Wen-Jie Bai , Guanrong Chen , Wei-Ke Xiao , Bing-Hong Wang

We study the following paradox associated with networks growing according to superlinear preferential attachment: superlinear preference cannot produce scale-free networks in the thermodynamic limit, but there are superlinearly growing…

统计力学 · 物理学 2008-08-23 Paul Krapivsky , Dmitri Krioukov

We use the configuration model to generate networks having a degree distribution that follows a $q$-exponential, $P_q(k)=(2-q)\lambda[1-(1-q)\lambda k]^{1/(q-1)}$, for arbitrary values of the parameters $q$ and $\lambda$. We study the…

In this paper, we address the logarithmic corrections to the leading power laws that govern thermodynamic quantities as a second-order phase transition point is approached. For phase transitions of spin systems on d-dimensional lattices,…

统计力学 · 物理学 2015-07-02 V. Palchykov , C. von Ferber , R. Folk , Yu. Holovatch , R. Kenna

Recently there have been a tremendous interest in models of networks with a power-law distribution of degree -- so called "scale-free networks." It has been observed that such networks, normally, have extremely short path-lengths, scaling…

无序系统与神经网络 · 物理学 2007-05-23 Petter Holme

We study network growth from a fixed set of initially isolated nodes placed at random on the surface of a sphere. The growth mechanism we use adds edges to the network depending on strictly local gain and cost criteria. Only nodes that are…

统计力学 · 物理学 2008-04-11 Valmir C. Barbosa , Raul Donangelo , Sergio R. Souza

It is commonly believed that real networks are scale-free and fraction of nodes $P(k)$ with degree $k$ satisfies the power law $P(k) \propto k^{-\gamma} \text{ for } k > k_{min} > 0$. Preferential attachment is the mechanism that has been…

数据结构与算法 · 计算机科学 2023-06-22 Raheel Anwar , Muhammad Irfan Yousuf , Muhammad Abid

Many naturally occurring networks have a power-law degree distribution as well as a non-zero degree correlation. Despite this, most studies analyzing the robustness to random node-deletion and vulnerability to targeted node-deletion have…

物理与社会 · 物理学 2017-02-17 Jeremy F. Alm , Keenan M. L. Mack

In their recent work "Scale-free networks are rare", Broido and Clauset address the problem of the analysis of degree distributions in networks to classify them as scale-free at different strengths of "scale-freeness." Over the last two…

物理与社会 · 物理学 2020-04-01 Pim van der Hoorn , Ivan Voitalov , Remco van der Hofstad , Dmitri Krioukov

We investigate the statistics of the most connected nodes in scale-free networks. For a scale-free network model with homogeneous nodes, we show by means of extensive simulations that the exponential truncation--due to the finite size of…

无序系统与神经网络 · 物理学 2007-05-23 Andre Auto Moreira , Jose Soares de Andrade , Luis A. Nunes Amaral

Complex networks across various fields are often considered to be scale free -- a statistical property usually solely characterized by a power-law distribution of the nodes' degree $k$. However, this characterization is incomplete. In…

物理与社会 · 物理学 2023-10-24 Xiangyi Meng , Bin Zhou

A random network is grown by introducing at unit rate randomly selected nodes on the Euclidean space. A node is randomly connected to its $i$-th predecessor of degree $k_i$ with a directed link of length $\ell$ using a probability…

统计力学 · 物理学 2009-11-07 S. S. Manna , Parongama Sen

We extend the previously observed scaling equation connecting the internode distances and nodes' degrees onto the case of weighted networks. We show that the scaling takes a similar form in the empirical data obtained from networks…

物理与社会 · 物理学 2010-08-25 Julian Sienkiewicz , Janusz A. Holyst

The size and number of maximum matchings in a network have found a large variety of applications in many fields. As a ubiquitous property of diverse real systems, power-law degree distribution was shown to have a profound influence on size…

社会与信息网络 · 计算机科学 2017-03-28 Huan Li , Zhongzhi Zhang

In this letter, we proposed an ungrowing scale-free network model, wherein the total number of nodes is fixed and the evolution of network structure is driven by a rewiring process only. In spite of the idiographic form of $G$, by using a…

统计力学 · 物理学 2015-06-25 Yan-Bo Xie , Tao Zhou , Bing-Hong Wang

Networks with a given degree distribution may be very resilient to one type of failure or attack but not to another. The goal of this work is to determine network design guidelines which maximize the robustness of networks to both random…

其他凝聚态物理 · 物理学 2009-11-10 G. Paul , T. Tanizawa , S. Havlin , H. E. Stanley

Complex network theory crucially depends on the assumptions made about the degree distribution, while fitting degree distributions to network data is challenging, in particular for scale-free networks with power-law degrees. We present a…

物理与社会 · 物理学 2022-12-28 Judith Brugman , Johan S. H. van Leeuwaarden , Clara Stegehuis

Deep connections are known to exist between scale-free networks and non-Gibbsian statistics. For example, typical degree distributions at the thermodynamical limit are of the form $P(k) \propto e_q^{-k/\kappa}$, where the $q$-exponential…

统计力学 · 物理学 2016-06-28 S. G. A. Brito , L. R. da Silva , Constantino Tsallis