Luiz Felipe R. Turci

Fully adaptive pinning control of complex networks

In this paper we propose a novel adaptive pinning control strategy for synchronization of complex networks. The novelty of this strategy is the fully decentralized adaptive selection of the coupling and control gains. After giving a sketch of the stability proof, we validate the analysis with numerical simulations on a testbed example.

Adaptive node-to-node pinning synchronization control of complex networks

In this work, we propose an adaptive node-to-node pinning control strategy. In this approach, both the coupling strength among nodes and the pinning control gains are adaptively changed according to well chosen adaptation laws that take into account the specificities of the oscillators and the network topology. Proof of stability and performance comparison is also shown in this paper.

HYBRID PINNING CONTROL FOR COMPLEX NETWORKS

In this work, we present two different hybrid pinning strategies to synchronize a complex network of identical agents into a known desired solution. The first strategy is the chaos control hybrid pinning in which pinning synchronization control and chaos control are merged. The second strategy is the nonidentical reference hybrid pinning, in which the pinning reference dynamical behavior is different from network nodes dynamical behavior.

Introduction to the proceedings of Dynamics Days South America 2010

This proceedings presents selected contributions from the participants of South America Dynamics Days 2011, which was hosted by the National Institute for Space Research (INPE), Brazil, in July 2010. Dynamics Days was founded in 1980 and is the longest standing and most respected international series of meetings devoted to the field of dynamics and nonlinearity. Traditionally it has brought together researchers from a wide range of backgrounds – including physics, biology, engineering, chemistry and mathematics – for interdisciplinary research into nonlinear science. Dynamics Days South America 2010 marked the beginning of the South American branch of Dynamics Days. It brought together, for the first time in South America, researchers from a wide range of backgrounds who share a common interest in the theory and applications of nonlinear dynamics. Thus, South American researchers had a forum to promote regional as well as international scientific and technological exchange and collaboration especially, but not exclusively, on problems that are particularly relevant for the development of science and technology in the South American region. Furthermore, the conference also brought together prominent scientists from around the world to review recent developments in nonlinear science. This conference comprised plenary invited talks, minisymposia, contributed talks and poster sessions. The articles that are compiled here were chosen from among the works that were presented as contributed talks and posters. They represent a good selection which allows one to put issues that were discussed during the conference into perspective. It is possible to evaluate the success of an initiative by using several indices. In relation to attendees, the conference had 311 participants from 22 countries, who presented 341 works. About 86% of the participants came from South American countries. These figures allow one to classify this Dynamics Days conference as that with the greatest number of attendees ever. Finally, we would like to express our gratitude to all the participants for their presentations, discussions, and remarkable interactions with one another. The tireless work undertaken by all the members of the International Advisory Committee and the Organizing Committee must also be recognized. We also wish to express our deep appreciation for the Scientific Societies and Research Support Agencies which supported the conference and provided all the resources which were necessary to make this idea of a South American Dynamics Days come true. Elbert E N Macau, Tiago Pereira, Antonio F B A Prado, Luiz F R Turci, and Othon C WinterEditors International Advisory Committee Adilson E MotterNorthwestern UniversityEvanston – IL – USA Alfredo OzorioCentro Brasileiro de Pesquisas FisicasRio de Janeiro – RJ – Brazil Celso Grebogi (Chair)University of AberdeenAberdeen – UK Ed OttUniversity of MarylandCollege Park – MD – USA Epaminondas Rosa JrIllinois State UniversityNormal – IL – USA Hans Ingo WeberPontificia Universidade CatolicaRio de Janeiro – RJ – Brazil Holger KantzMax Planck Institute for the Physics of Complex SystemsDresden – Germany Jason Gallas (Co-chair)Universidade Federal do Rio Grande do SulPorto Alegre – RS – Brazil Jose Roberto Rios LeiteUniv. Federal de PernanbucoRecife – PE – Brazil Jurgen KurthsPotsdam Institute for climate Impact ResearchHumboldt University, Berlin – Germany Kenneth ShowalterWest Virginia UniversityMorgantown – WV – USA Lou PecoraNaval Research LabWashington – DC – USA Luis Antonio AguirreUniversidade Federal de Minas GeraisBelo Horizonte – MG – Brazil Marcelo VianaIMPA – Instituto Nacional de Matematica Pura e AplicadaRio de Janeiro – RJ – Brazil Miguel A F SanjuanUniversidad Rey Juan CarlosMadrid – Spain Paulo Roberto de Souza MendesPontificia Universidade CatolicaRio de Janeiro – RJ – Brazil Roland KorbeleUniversidade de Sao PauloSao Carlos – SP – Brazil Rubens SampaioPontificia Universidade CatolicaRio de Janeiro – RJ – Brazil Ruedi StoopSwiss Federal Institute of TechnologyUZH/ETHZ Zurich – Switzerland Sylvio Ferraz MelloUniversidade de Sao PauloSao Paulo – SP – Brazil Takashi YoneyamaITA – Instituto Tecnologico de AeronauticaSao Jose dos Campos – SP – Brazil Ying-Cheng LaiArizona State UniversityTempe – AZ – USA Organizing Committee Antonio Carlos Roque da SilvaUSP – Universidade de Sao PauloRibeirao Preto – SP – Brazil Antonio F Bertachini de Almeida Prado (Co-chair)INPE – Instituto Nacional de Pesquisas EspaciaisSao Jose dos Campos – SP – Brazil Arturo C MartiFacultad de CienciaMontevideo – Uruguai Carlos Leopoldo Pando LambruschiniBenemerita Universidad Autonoma de PueblaPuebla – Mexico Edson Denis LeonelUNESP – Julio de Mesquisa FilhoRio Claro – SP – Brazil Elbert E N Macau (Chair)INPE – Instituto Nacional de Pesquisas EspaciaisSao Jose dos Campos – SP – Brazil Gerard Olivar TostUniversidad National de ColombiaManizales – Colombia Hamilton VarelaUSP – Universidade de Sao PauloSao Carlos – SP – Brazil Hilda Cerdeira (Co-chair)IFT – Instituto de Fisica TeoricaSao Paulo – SP – Brazil Ibere Luiz CaldasUSP – Universidade de Sao PauloSao Paulo – SP – Brazil Jose Manoel BalthazarUNESP – Julio de Mesquisa FilhoRio Claro – SP – Brazil Jose Roberto Castilho PiqueiraUSP – Universidade de Sao PauloSao Paulo – SP – Brazil Luciano da Fontoura CostaUSP – Universidade de Sao PauloSao Carlos – SP – Brazil Luiz de Siqueira Martins FilhoUFABC – Universidade Federal do ABCSanto Andre – SP – Brazil Marcel G ClercUniversidad de ChileSantiago – Chile Miguel VizcardoUniversidad de ArequipaArequipa – Peru Gonzalo Marcelo Ramirez AvilaUniversidad Mayor de San AndresLa Paz – Bolivia Marco Aurelio Pires IdiartUniversidade Federal do Rio Grande do SulPorto Alegre – RS – Brazil Marcus de AguiarUNICAMPCampinas – SP – Brazil Mario CosenzaUniversidad de Los AndesMerida – Venezuela Othon Cabo WinterUNESP – Julio de Mesquisa FilhoGuaratingueta – SP – Brazil Ricardo Luiz VianaUniversidade Federal do ParanaCuritiba – PA – Brazil Silvina Ponce DawsonUniversidad de Buenos AiresBuenos Aires – Argentina Vivian M GomesINPE – Instituto Nacional de Pesquisas EspaciaisSao Jose dos Campos – SP – Brazil Realization Promotion Sponsorship

PINNING SYNCHRONIZATION CONTROL PERFORMANCE

In this work we address the problem of controlling a complex network toward a synchronous evolution by using pinning control strategy. Considering this control approach, we investigate the effect of the number of pinned nodes and how the strategy performance behaves in accordance with the type of nodes that are chosen as the ones over which the control is applied. The roles of the control and coupling gains are also discussed. Palavras-chave: Complex networks, pinning control, synchronization performance

Discontinuity Induced Bifurcations in a Piecewise-Smooth Satellite Power Subsystem Model

Abstract In this work, a simple piecewise-smooth model for satellite power subsystem is presented and analyzed. The system presents a multitude of nonlinear phenomena like coexistence of attractors, chaos, and bifurcations induced by discontinuity; analyzed here by applying numeric and analytical approaches.