813 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centro Brasileiro de Pesquisas FísicasBR57 papers
- Santa Fe InstituteUS33 papers
- Pontifícia Universidade Católica do Rio de JaneiroBR24 papers
- Universidade Federal FluminenseBR21 papers
- Universidade de São PauloBR20 papers
- Instituto de Física de São CarlosBR11 papers
- Universidade Federal de ViçosaBR11 papers
- Universidade Federal do Rio Grande do SulBR11 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR8 papers
- Conselho Nacional de Desenvolvimento Científico e TecnológicoBR8 papers
- Universidade Estadual de MaringáBR8 papers
- Complexity Science HubAT7 papers
37 papers · 1 filter
Nonlinear redistribution of wealth from a stochastic approach
Hugo Lima, Allan R. Vieira, Celia Anteneodo
We investigate the effect of applying nonlinear redistributive taxes to the yard-sale dynamics of assets. An amount of money is collected from each individual (tax) and distributed…
Skepticism and rumor spreading: the role of spatial correlations
Marco Antonio Amaral, W. G. Dantas, Jeferson J. Arenzon
Critical thinking and skepticism are fundamental mechanisms that one may use to prevent the spreading of rumors, fake-news and misinformation. We consider a simple model in which a…
Hysteresis and disorder-induced order in continuous kinetic-like opinion dynamics in complex networks
A. L. Oestereich, M. A. Pires, S. M. Duarte Queirós +1
In this work we tackle a kinetic-like model of opinions dynamics in a networked population endued with a quenched plurality and polarization. Additionally, we consider pairwise int…
Pair approximation for the noisy threshold -voter model
A. R. Vieira, Antonio F. Peralta, Raul Toral +2
In the standard -voter model, a given agent can change its opinion only if there is a full consensus of the opposite opinion within a group of influence of size . A more real…
Characterizing network topology using first-passage analysis
M. S. Chaves, T. G. Mattos, A. P. F. Atman
Understanding the topological characteristics of complex networks and how they affect navigability is one of the most important goals in science today, as it plays a central role i…
A generalised model for asymptotically-scale-free geographical networks
Nicola Cinardi, Andrea Rapisarda, Constantino Tsallis
We consider a generalised d-dimensional model for asymptotically-scale-free geographical networks. Central to many networks of this kind, when considering their growth in time, is…
The Multiplex Efficiency Index: unveiling the Brazilian Air Transportation Multiplex Network -- BATMN
Izabela M. Oliveira, Laura C. Carpi, A. P. F. Atman
Modern society is increasingly massively connected, reflecting an omnipresent tendency to organize social, economic, and technological structures in complex networks. Recently, wit…
Dynamical correlations and pairwise theory for the symbiotic contact process on networks
Marcelo M. de Oliveira, Sidiney G. Alves, Silvio C. Ferreira
The two-species symbiotic contact process (2SCP) is a stochastic process where each vertex of a graph may be vacant or host at most one individual of each species. Vertices with bo…
Spectral properties and the accuracy of mean-field approaches for epidemics on correlated networks
Diogo H. Silva, Silvio C. Ferreira, Wesley Cota +2
We present a comparison between stochastic simulations and mean-field theories for the epidemic threshold of the susceptible-infected-susceptible (SIS) model on correlated networks…
Quantifying echo chamber effects in information spreading over political communication networks
Wesley Cota, Silvio C. Ferreira, Romualdo Pastor-Satorras +1
Echo chambers in online social networks, in which users prefer to interact only with ideologically-aligned peers, are believed to facilitate misinformation spreading and contribute…
Activation thresholds in epidemic spreading with motile infectious agents on scale-free networks
Diogo H. Silva, Silvio C. Ferreira
We investigate a fermionic susceptible-infected-susceptible model with mobility of infected individuals on uncorrelated scale-free networks with power-law degree distributions $P (…
Threshold -voter model
Allan R. Vieira, Celia Anteneodo
We introduce the threshold -voter opinion dynamics where an agent, facing a binary choice, can change its mind when at least amongst neighbors share the opposite opini…
Robustness and fragility of the susceptible-infected-susceptible epidemic models on complex networks
Wesley Cota, Angélica S. Mata, Silvio C. Ferreira
We analyze two alterations of the standard susceptible-infected-susceptible (SIS) dynamics that preserve the central properties of spontaneous healing and infection capacity of a v…
Griffiths phases in infinite-dimensional, non-hierarchical modular networks
Wesley Cota, Géza Ódor, Silvio C. Ferreira
Griffiths phases (GPs), generated by the heterogeneities on modular networks, have recently been suggested to provide a mechanism, rid of fine parameter tuning, to explain the crit…
Epidemic spreading in multiplex networks influenced by opinion exchanges on vaccination
L. G. Alvarez-Zuzek, Cristian E. La Rocca, J. R. Iglesias +1
We study the changes of opinions about vaccination together with the evolution of a disease. In our model we consider a multiplex network consisting of two layers. One of the layer…
Symmetry breaking by heating in a continuous opinion model
Celia Anteneodo, Nuno Crokidakis
We study the critical behavior of a continuous opinion model, driven by kinetic exchanges in a fully-connected population. Opinions range in the real interval , representin…
Adoption of Innovations with Contrarians and Repentant Agents
Mirta B. Gordon, M. F. Laguna, S. Goncalves +1
The dynamics of adoption of innovations is an important subject in many fields and areas, like technological development, industrial processes, social behavior, fashion or marketin…
Fast computation method for comprehensive agent-level epidemic dissemination in networks
Gilberto M. Nakamura, Ana Carolina P. Monteiro, George C. Cardoso +1
Two simple agent based models are often employed in epidemic studies: the susceptible-infected (SI) and the susceptible-infected-susceptible (SIS). Both models describe the time ev…
Analytic solutions for links and triangles distributions in finite Barabási-Albert networks
Ricardo M. Ferreira, Rita M. C. de Almeida, Leonardo G. Brunnet
Barabási-Albert model describes many different natural networks, often yielding sensible explanations to the subjacent dynamics. However, finite size effects may prevent from disce…
Role of the plurality rule in multiple choices
Angelo M. Calvão, Marlon Ramos, Celia Anteneodo
People are often challenged to select one among several alternatives. This situation is present not only in decisions about complex issues, e.g., political or academic choices, but…
Consequences of nonconformist behaviors in a continuous opinion model
Allan R. Vieira, Celia Anteneodo, Nuno Crokidakis
We investigate opinion formation in a kinetic exchange opinion model, where opinions are represented by numbers in the real interval and agents are typified by the individ…
Scale-adjusted metrics for predicting the evolution of urban indicators and quantifying the performance of cities
Luiz G. A. Alves, Renio S. Mendes, Ervin K. Lenzi +1
More than a half of world population is now living in cities and this number is expected to be two-thirds by 2050. Fostered by the relevancy of a scientific characterization of cit…
Inflexibility and independence: Phase transitions in the majority-rule model
Nuno Crokidakis, Paulo Murilo Castro de Oliveira
In this work we study opinion formation in a population participating of a public debate with two distinct choices. We considered three distinct mechanisms of social interactions a…
Stylized facts in Brazilian vote distributions
Angelo Mondaini Calvão, Nuno Crokidakis, Celia Anteneodo
Elections, specially in countries such as Brazil with an electorate of the order of 100 million people, yield large-scale data-sets embodying valuable information on the dynamics t…