Delay Controlled Partial Synchronization In Complex Networks

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Delay Controlled Partial Synchronization in Complex Networks

Author : Jakub Sawicki
Publisher :
ISBN 13 : 9783030340773
Total Pages : pages
Book Rating : 4.3/5 (47 download)

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Book Synopsis Delay Controlled Partial Synchronization in Complex Networks by : Jakub Sawicki

Download or read book Delay Controlled Partial Synchronization in Complex Networks written by Jakub Sawicki and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this thesis are synchronization phenomena in networks and their intrinsic control through time delay, which is ubiquitous in real-world systems ranging from physics and acoustics to neuroscience and engineering. We encounter synchronization everywhere and it can be either a helpful or a detrimental mechanism. In the first part, after a survey of complex nonlinear systems and networks, we show that a seemingly simple system of two organ pipes gives birth to complex bifurcation and synchronization scenarios. Going from a 2-oscillator system to a ring of oscillators, we encounter the intriguing phenomenon of chimera states which are partial synchrony patterns with coexisting domains of synchronized and desynchronized dynamics. For more than a decade scientist have tried to solve the puzzle of this spontaneous symmetry-breaking emerging in networks of identical elements. We provide an analysis of initial conditions and extend our model by the addition of time delay and fractal connectivities. In the second part, we investigate partial synchronization patterns in a neuronal network and explain dynamical asymmetry arising from the hemispheric structure of the human brain. A particular focus is on the novel scenario of partial relay synchronization in multiplex networks. Such networks allow for synchronization of the coherent domains of chimera states via a remote layer, whereas the incoherent domains remain desynchronized. The theoretical framework is demonstrated with different generic models.

Delay Controlled Partial Synchronization in Complex Networks

Author : Jakub Sawicki
Publisher : Springer Nature
ISBN 13 : 3030340767
Total Pages : 166 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Delay Controlled Partial Synchronization in Complex Networks by : Jakub Sawicki

Download or read book Delay Controlled Partial Synchronization in Complex Networks written by Jakub Sawicki and published by Springer Nature. This book was released on 2019-11-30 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this thesis are synchronization phenomena in networks and their intrinsic control through time delay, which is ubiquitous in real-world systems ranging from physics and acoustics to neuroscience and engineering. We encounter synchronization everywhere and it can be either a helpful or a detrimental mechanism. In the first part, after a survey of complex nonlinear systems and networks, we show that a seemingly simple system of two organ pipes gives birth to complex bifurcation and synchronization scenarios. Going from a 2-oscillator system to a ring of oscillators, we encounter the intriguing phenomenon of chimera states which are partial synchrony patterns with coexisting domains of synchronized and desynchronized dynamics. For more than a decade scientist have tried to solve the puzzle of this spontaneous symmetry-breaking emerging in networks of identical elements. We provide an analysis of initial conditions and extend our model by the addition of time delay and fractal connectivities. In the second part, we investigate partial synchronization patterns in a neuronal network and explain dynamical asymmetry arising from the hemispheric structure of the human brain. A particular focus is on the novel scenario of partial relay synchronization in multiplex networks. Such networks allow for synchronization of the coherent domains of chimera states via a remote layer, whereas the incoherent domains remain desynchronized. The theoretical framework is demonstrated with different generic models.

Synchronization Control of Markovian Complex Neural Networks with Time-varying Delays

Author : Junyi Wang
Publisher : Springer Nature
ISBN 13 : 3031478355
Total Pages : 162 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Synchronization Control of Markovian Complex Neural Networks with Time-varying Delays by : Junyi Wang

Download or read book Synchronization Control of Markovian Complex Neural Networks with Time-varying Delays written by Junyi Wang and published by Springer Nature. This book was released on 2023-11-28 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph studies the synchronization control of Markovian complex neural networks with time-varying delays, and the structure of the book is summarized as follows. Chapter 1 introduces the system description and some background knowledges, and also addresses the motivations of this monograph. In Chapter 2, the stochastic synchronization issue of Markovian coupled neural networks with partially unknown transition rates and random coupling strengths is investigated. In Chapter 3, the local synchronization issue of Markovian neutral complex networks with partially information of transition rates is investigated. The new delay-dependent synchronization criteria in terms of LMIs are derived, which depends on the upper and lower bounds of the delays. In Chapter 4, the local synchronization issue of Markovian nonlinear coupled neural networks with uncertain and partially unknown transition rates is investigated. The less conservative local synchronization criteria containing the bounds of delay and delay derivative are obtained based on the novel augmented Lyapunov-Krasovskii functional and a new integral inequality. In Chapter 5, the sampled-data synchronization issue of delayed complex networks with aperiodic sampling interval is investigated based on enhanced input delay approach, which makes full use of the upper bound of the variable sampling interval and the sawtooth structure information of varying input delay. In Chapter 6, the sampled-data synchronization issue of Markovian coupled neural networks with mode-dependent interval time-varying delays and aperiodic sampling intervals is investigated based on an enhanced input delay approach. Furthermore, the mode-dependent sampled-data controllers are proposed based on the delay dependent synchronization criteria. In Chapter 7, the synchronization issue of inertial neural networks with time-varying delays and generally Markovian jumping is investigated. In Chapter 8, we conclude the monograph by briefly summarizing the main theoretical findings.

Patterns of Synchrony in Complex Networks of Adaptively Coupled Oscillators

Author : Rico Berner
Publisher : Springer Nature
ISBN 13 : 303074938X
Total Pages : 210 pages
Book Rating : 4.0/5 (37 download)

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Book Synopsis Patterns of Synchrony in Complex Networks of Adaptively Coupled Oscillators by : Rico Berner

Download or read book Patterns of Synchrony in Complex Networks of Adaptively Coupled Oscillators written by Rico Berner and published by Springer Nature. This book was released on 2021-05-31 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this thesis is the interplay of synchrony and adaptivity in complex networks. Synchronization is a ubiquitous phenomenon observed in different contexts in physics, chemistry, biology, neuroscience, medicine, socioeconomic systems, and engineering. Most prominently, synchronization takes place in the brain, where it is associated with cognitive capacities like learning and memory, but is also a characteristic of neurological diseases like Parkinson and epilepsy. Adaptivity is common in many networks in nature and technology, where the connectivity changes in time, i.e., the strength of the coupling is continuously adjusted depending upon the dynamic state of the system, for instance synaptic neuronal plasticity in the brain. This research contributes to a fundamental understanding of various synchronization patterns, including hierarchical multifrequency clusters, chimeras and other partial synchronization states. After a concise survey of the fundamentals of adaptive and complex dynamical networks and synaptic plasticity, in the first part of the thesis the existence and stability of cluster synchronization in globally coupled adaptive networks is discussed for simple paradigmatic phase oscillators as well as for a more realistic neuronal oscillator model with spike-timing dependent plasticity. In the second part of the thesis the interplay of adaptivity and connectivity is investigated for more complex network structures like nonlocally coupled rings, random networks, and multilayer systems. Besides presenting a plethora of novel, sometimes intriguing patterns of synchrony, the thesis makes a number of pioneering methodological advances, where rigorous mathematical proofs are given in the Appendices. These results are of interest not only from a fundamental point of view, but also with respect to challenging applications in neuroscience and technological systems.

Controlling Synchronization Patterns in Complex Networks

Author : Judith Lehnert
Publisher : Springer
ISBN 13 : 3319251155
Total Pages : 203 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Controlling Synchronization Patterns in Complex Networks by : Judith Lehnert

Download or read book Controlling Synchronization Patterns in Complex Networks written by Judith Lehnert and published by Springer. This book was released on 2015-11-06 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research aims to achieve a fundamental understanding of synchronization and its interplay with the topology of complex networks. Synchronization is a ubiquitous phenomenon observed in different contexts in physics, chemistry, biology, medicine and engineering. Most prominently, synchronization takes place in the brain, where it is associated with several cognitive capacities but is - in abundance - a characteristic of neurological diseases. Besides zero-lag synchrony, group and cluster states are considered, enabling a description and study of complex synchronization patterns within the presented theory. Adaptive control methods are developed, which allow the control of synchronization in scenarios where parameters drift or are unknown. These methods are, therefore, of particular interest for experimental setups or technological applications. The theoretical framework is demonstrated on generic models, coupled chemical oscillators and several detailed examples of neural networks.

Analysis and Control of Output Synchronization for Complex Dynamical Networks

Author : Jin-Liang Wang
Publisher : Springer
ISBN 13 : 9811313520
Total Pages : 216 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Analysis and Control of Output Synchronization for Complex Dynamical Networks by : Jin-Liang Wang

Download or read book Analysis and Control of Output Synchronization for Complex Dynamical Networks written by Jin-Liang Wang and published by Springer. This book was released on 2018-08-14 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces recent results on output synchronization of complex dynamical networks with single and multiple weights. It discusses novel research ideas and a number of definitions in complex dynamical networks, such as H-Infinity output synchronization, adaptive coupling weights, multiple weights, the relationship between output strict passivity and output synchronization. Furthermore, it methodically edits the research results previously published in various flagship journals and presents them in a unified form. The book is of interest to university researchers and graduate students in engineering and mathematics who wish to study output synchronization of complex dynamical networks.

From Structure to Function in Neuronal Networks: Effects of Adaptation, Time-Delays, and Noise

Author : Serhiy Yanchuk
Publisher : Frontiers Media SA
ISBN 13 : 288976138X
Total Pages : 214 pages
Book Rating : 4.8/5 (897 download)

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Book Synopsis From Structure to Function in Neuronal Networks: Effects of Adaptation, Time-Delays, and Noise by : Serhiy Yanchuk

Download or read book From Structure to Function in Neuronal Networks: Effects of Adaptation, Time-Delays, and Noise written by Serhiy Yanchuk and published by Frontiers Media SA. This book was released on 2022-05-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Impulsive Synchronization of Complex Dynamical Networks

Author : Ze Tang
Publisher : Springer Nature
ISBN 13 : 9811653836
Total Pages : 182 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Impulsive Synchronization of Complex Dynamical Networks by : Ze Tang

Download or read book Impulsive Synchronization of Complex Dynamical Networks written by Ze Tang and published by Springer Nature. This book was released on 2021-09-03 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is mainly focused on the global impulsive synchronization of complex dynamical networks with different types of couplings, such as general state coupling, nonlinear state coupling, time-varying delay coupling, derivative state coupling, proportional delay coupling and distributed delay coupling. Studies on impulsive synchronization of complex dynamical networks have attracted engineers and scientists from various disciplines, such as electrical engineering, mechanical engineering, mathematics, network science, system engineering. Pursuing a holistic approach, the book establishes a fundamental framework for this topic, while emphasizing the importance of network synchronization and the significant influence of impulsive control in the design and optimization of complex networks. The primary audience for the book would be the scholars and graduate students whose research topics including the network science, control theory, applied mathematics, system science and so on.

International Seminars On Nuclear War And Planetary Emergencies - 49th Session

Author : Zichichi Antonino
Publisher : World Scientific
ISBN 13 : 9811205221
Total Pages : 444 pages
Book Rating : 4.8/5 (112 download)

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Book Synopsis International Seminars On Nuclear War And Planetary Emergencies - 49th Session by : Zichichi Antonino

Download or read book International Seminars On Nuclear War And Planetary Emergencies - 49th Session written by Zichichi Antonino and published by World Scientific. This book was released on 2019-03-26 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 49th Session of the International Seminars on Nuclear War and Planetary Emergencies held in Erice, Sicily. This Seminar has again gathered, in 2016, over one hundred scientists from 43 countries in an interdisciplinary effort that has been going on for the last 33 years, to examine and analyze planetary problems which had been followed up, all year long, by the World Federation of Scientists' Permanent Monitoring Panels.

Distributed Filtering, Control and Synchronization

Author : Fei Han
Publisher : Springer Nature
ISBN 13 : 3030970752
Total Pages : 231 pages
Book Rating : 4.0/5 (39 download)

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Book Synopsis Distributed Filtering, Control and Synchronization by : Fei Han

Download or read book Distributed Filtering, Control and Synchronization written by Fei Han and published by Springer Nature. This book was released on 2022-03-24 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book establishes a unified framework for dealing with typical engineering complications arising in modern, complex, large-scale networks such as parameter uncertainties, missing measurement and cyber-attack. Distributed Filtering, Control and Synchronization is a timely reflection on methods designed to handle a series of control and signal-processing issues in modern industrial engineering practice in areas like power grids and environmental monitoring. It exploits the latest techniques to handle the emerging mathematical and computational challenges arising from, among other things, the dynamic topologies of distributed systems and in the context of sensor networks and multi-agent systems. These techniques include recursive linear matrix inequalities, local-performance and stochastic analyses and techniques based on matrix theory. Readers interested in the theory and application of control and signal processing will find much to interest them in the new models and methods presented in this book. Academic researchers can find ideas for developing their own research, graduate and advanced undergraduate students will be made aware of the state of the art, and practicing engineers will find methods for addressing practical difficulties besetting modern networked systems

Qualitative Analysis and Control of Complex Neural Networks with Delays

Author : Zhanshan Wang
Publisher : Springer
ISBN 13 : 3662474840
Total Pages : 388 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Qualitative Analysis and Control of Complex Neural Networks with Delays by : Zhanshan Wang

Download or read book Qualitative Analysis and Control of Complex Neural Networks with Delays written by Zhanshan Wang and published by Springer. This book was released on 2015-07-18 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the stability of the dynamical neural system, synchronization of the coupling neural system and their applications in automation control and electrical engineering. The redefined concept of stability, synchronization and consensus are adopted to provide a better explanation of the complex neural network. Researchers in the fields of dynamical systems, computer science, electrical engineering and mathematics will benefit from the discussions on complex systems. The book will also help readers to better understand the theory behind the control technique and its design.

Analysis and Control of Coupled Neural Networks with Reaction-Diffusion Terms

Author : Jin-Liang Wang
Publisher : Springer
ISBN 13 : 9811049076
Total Pages : 220 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Analysis and Control of Coupled Neural Networks with Reaction-Diffusion Terms by : Jin-Liang Wang

Download or read book Analysis and Control of Coupled Neural Networks with Reaction-Diffusion Terms written by Jin-Liang Wang and published by Springer. This book was released on 2017-06-07 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces selected recent findings on the analysis and control of dynamical behaviors for coupled reaction-diffusion neural networks. It presents novel research ideas and essential definitions concerning coupled reaction-diffusion neural networks, such as passivity, adaptive coupling, spatial diffusion coupling, and the relationship between synchronization and output strict passivity. Further, it gathers research results previously published in many flagship journals, presenting them in a unified form. As such, the book will be of interest to all university researchers and graduate students in Engineering and Mathematics who wish to study the dynamical behaviors of coupled reaction-diffusion neural networks.

Chimera Patterns in Networks

Author : Anna Zakharova
Publisher : Springer Nature
ISBN 13 : 3030217140
Total Pages : 243 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis Chimera Patterns in Networks by : Anna Zakharova

Download or read book Chimera Patterns in Networks written by Anna Zakharova and published by Springer Nature. This book was released on 2020-03-09 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book devoted to chimera states - peculiar partial synchronization patterns in networks. Providing an overview of the state of the art in research on this topic, it explores how these hybrid states, which are composed of spatially separated domains of synchronized and desynchronized behavior, arise surprisingly in networks of identical units and symmetric coupling topologies. The book not only describes various types of chimeras, but also discusses the role of time delay, stochasticity, and network topology for these synchronization-desynchronization patterns. Moreover, it addresses the question of robustness and control of chimera states, which have various applications in physics, biology, chemistry, and engineering. This book is intended for researchers with a background in physics, applied mathematics, or engineering. Of great interest to specialists working on related problems, it is also a valuable resource for newcomers to the field and other scientists working on the control of spatio-temporal patterns.

Thermoacoustic Instability

Author : R. I. Sujith
Publisher : Springer Nature
ISBN 13 : 3030811352
Total Pages : 484 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Thermoacoustic Instability by : R. I. Sujith

Download or read book Thermoacoustic Instability written by R. I. Sujith and published by Springer Nature. This book was released on 2021-12-14 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically presents the consolidated findings of the phenomenon of self-organization observed during the onset of thermoacoustic instability using approaches from dynamical systems and complex systems theory. Over the last decade, several complex dynamical states beyond limit cycle oscillations such as quasiperiodicity, frequency-locking, period-n, chaos, strange non-chaos, and intermittency have been discovered in thermoacoustic systems operated in laminar and turbulent flow regimes. During the onset of thermoacoustic instability in turbulent systems, an ordered acoustic field and large coherent vortices emerge from the background of turbulent combustion. This emergence of order from disorder in both temporal and spatiotemporal dynamics is explored in the contexts of synchronization, pattern formation, collective interaction, multifractality, and complex networks. For the past six decades, the spontaneous emergence of large amplitude, self-sustained, tonal oscillations in confined combustion systems, characterized as thermoacoustic instability, has remained one of the most challenging areas of research. The presence of such instabilities continues to hinder the development and deployment of high-performance combustion systems used in power generation and propulsion applications. Even with the advent of sophisticated measurement techniques to aid experimental investigations and vast improvements in computational power necessary to capture flow physics in high fidelity simulations, conventional reductionist approaches have not succeeded in explaining the plethora of dynamical behaviors and the associated complexities that arise in practical combustion systems. As a result, models and theories based on such approaches are limited in their application to mitigate or evade thermoacoustic instabilities, which continue to be among the biggest concerns for engine manufacturers today. This book helps to overcome these limitations by providing appropriate methodologies to deal with nonlinear thermoacoustic oscillations, and by developing control strategies that can mitigate and forewarn thermoacoustic instabilities. The book is also beneficial to scientists and engineers studying the occurrence of several other instabilities, such as flow-induced vibrations, compressor surge, aeroacoustics and aeroelastic instabilities in diverse fluid-mechanical environments, to graduate students who intend to apply dynamical systems and complex systems approach to their areas of research, and to physicists who look for experimental applications of their theoretical findings on nonlinear and complex systems.

Robust Control

Author : Moises Rivas-Lopez
Publisher : BoD – Books on Demand
ISBN 13 : 9535124234
Total Pages : 176 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Robust Control by : Moises Rivas-Lopez

Download or read book Robust Control written by Moises Rivas-Lopez and published by BoD – Books on Demand. This book was released on 2016-07-06 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to be tolerant to changes in the control systems or in the operational environment of systems subject to unknown disturbances has generated new control methods that are able to deal with the non-parametrized disturbances of systems, without adapting itself to the system uncertainty but rather providing stability in the presence of errors bound in a model. With this approach in mind and with the intention to exemplify robust control applications, this book includes selected chapters that describe models of H-infinity loop, robust stability and uncertainty, among others. Each robust control method and model discussed in this book is illustrated by a relevant example that serves as an overview of the theoretical and practical method in robust control.

Chimera States in Complex Networks

Author : Eckehard Schöll
Publisher : Frontiers Media SA
ISBN 13 : 288963311X
Total Pages : 148 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis Chimera States in Complex Networks by : Eckehard Schöll

Download or read book Chimera States in Complex Networks written by Eckehard Schöll and published by Frontiers Media SA. This book was released on 2020-01-03 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recent Advances in Control Problems of Dynamical Systems and Networks

Author : Ju H. Park
Publisher : Springer Nature
ISBN 13 : 3030491234
Total Pages : 548 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Recent Advances in Control Problems of Dynamical Systems and Networks by : Ju H. Park

Download or read book Recent Advances in Control Problems of Dynamical Systems and Networks written by Ju H. Park and published by Springer Nature. This book was released on 2020-08-11 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book introduces readers to new analytical techniques and controller design schemes used to solve the emerging “hottest” problems in dynamic control systems and networks. In recent years, the study of dynamic systems and networks has faced major changes and challenges with the rapid advancement of IT technology, accompanied by the 4th Industrial Revolution. Many new factors that now have to be considered, and which haven’t been addressed from control engineering perspectives to date, are naturally emerging as the systems become more complex and networked. The general scope of this book includes the modeling of the system itself and uncertainty elements, examining stability under various criteria, and controller design techniques to achieve specific control objectives in various dynamic systems and networks. In terms of traditional stability matters, this includes the following special issues: finite-time stability and stabilization, consensus/synchronization, fault-tolerant control, event-triggered control, and sampled-data control for classical linear/nonlinear systems, interconnected systems, fractional-order systems, switched systems, neural networks, and complex networks. In terms of introducing graduate students and professional researchers studying control engineering and applied mathematics to the latest research trends in the areas mentioned above, this book offers an excellent guide.