Strange Attractors for Periodically Forced Parabolic Equations

Strange Attractors for Periodically Forced Parabolic Equations PDF Author: Kening Lu
Publisher: American Mathematical Soc.
ISBN: 0821884840
Category : Mathematics
Languages : en
Pages : 97

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Book Description
The authors prove that in systems undergoing Hopf bifurcations, the effects of periodic forcing can be amplified by the shearing in the system to create sustained chaotic behavior. Specifically, strange attractors with SRB measures are shown to exist. The analysis is carried out for infinite dimensional systems, and the results are applicable to partial differential equations. Application of the general results to a concrete equation, namely the Brusselator, is given.

Strange Attractors for Periodically Forced Parabolic Equations

Strange Attractors for Periodically Forced Parabolic Equations PDF Author: Kening Lu
Publisher: American Mathematical Soc.
ISBN: 0821884840
Category : Mathematics
Languages : en
Pages : 97

Get Book

Book Description
The authors prove that in systems undergoing Hopf bifurcations, the effects of periodic forcing can be amplified by the shearing in the system to create sustained chaotic behavior. Specifically, strange attractors with SRB measures are shown to exist. The analysis is carried out for infinite dimensional systems, and the results are applicable to partial differential equations. Application of the general results to a concrete equation, namely the Brusselator, is given.

Nonautonomous Dynamical Systems in the Life Sciences

Nonautonomous Dynamical Systems in the Life Sciences PDF Author: Peter E. Kloeden
Publisher: Springer
ISBN: 3319030809
Category : Mathematics
Languages : en
Pages : 314

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Book Description
Nonautonomous dynamics describes the qualitative behavior of evolutionary differential and difference equations, whose right-hand side is explicitly time dependent. Over recent years, the theory of such systems has developed into a highly active field related to, yet recognizably distinct from that of classical autonomous dynamical systems. This development was motivated by problems of applied mathematics, in particular in the life sciences where genuinely nonautonomous systems abound. The purpose of this monograph is to indicate through selected, representative examples how often nonautonomous systems occur in the life sciences and to outline the new concepts and tools from the theory of nonautonomous dynamical systems that are now available for their investigation.

Metabolic estimates during glucose challenge tests and continuous glucose monitoring – innovative and broad approaches to assessing glucose and insulin metabolism in diverse populations

Metabolic estimates during glucose challenge tests and continuous glucose monitoring – innovative and broad approaches to assessing glucose and insulin metabolism in diverse populations PDF Author: Joon Ha
Publisher: Frontiers Media SA
ISBN: 2832512143
Category : Medical
Languages : en
Pages : 142

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Book Description


Attractors of Quasiperiodically Forced Systems

Attractors of Quasiperiodically Forced Systems PDF Author: Tomasz Kapitaniak
Publisher: World Scientific
ISBN: 9814502774
Category : Science
Languages : en
Pages : 100

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Book Description
This book discusses the influence of quasiperiodic force on dynamical system. With this type of forcing, different types of attractors are possible, for example, strange nonchaotic attractors which have some unusual properties. The main part of this book is based on the authors' recent works, but it also presents the results which are the combined achievements of many investigators. Contents:IntroductionAttractors of Dynamical SystemsStrange Nonchaotic AttractorsInhibition of Chaotic Behaviour in Coupled Geophysical ModelsExperimental System with Dry Friction Readership: Scientists interested in chaos and nonlinear science. keywords: “… useful as a first reading in this particular subfield of nonlinear dynamics.” Mathematical Reviews

A Complete Classification of the Isolated Singularities for Nonlinear Elliptic Equations with Inverse Square Potentials

A Complete Classification of the Isolated Singularities for Nonlinear Elliptic Equations with Inverse Square Potentials PDF Author: Florica C. Cîrstea
Publisher: American Mathematical Soc.
ISBN: 0821890220
Category : Mathematics
Languages : en
Pages : 97

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Book Description
In particular, for b = 1 and λ = 0, we find a sharp condition on h such that the origin is a removable singularity for all non-negative solutions of [[eqref]]one, thus addressing an open question of Vázquez and Véron.

The Sine-Gordon Equation in the Semiclassical Limit: Dynamics of Fluxon Condensates

The Sine-Gordon Equation in the Semiclassical Limit: Dynamics of Fluxon Condensates PDF Author: Robert J. Buckingham
Publisher: American Mathematical Soc.
ISBN: 0821885456
Category : Mathematics
Languages : en
Pages : 148

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Book Description
The authors study the Cauchy problem for the sine-Gordon equation in the semiclassical limit with pure-impulse initial data of sufficient strength to generate both high-frequency rotational motion near the peak of the impulse profile and also high-frequency librational motion in the tails. They show that for small times independent of the semiclassical scaling parameter, both types of motion are accurately described by explicit formulae involving elliptic functions. These formulae demonstrate consistency with predictions of Whitham's formal modulation theory in both the hyperbolic (modulationally stable) and elliptic (modulationally unstable) cases.

Advances in Nonlinear Geosciences

Advances in Nonlinear Geosciences PDF Author: Anastasios A. Tsonis
Publisher: Springer
ISBN: 3319588958
Category : Science
Languages : en
Pages : 707

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Book Description
Advances in Nonlinear Geosciences is a set of contributions from the participants of “30 Years of Nonlinear Dynamics” held July 3-8, 2016 in Rhodes, Greece as part of the Aegean Conferences, as well as from several other experts in the field who could not attend the meeting. The volume brings together up-to-date research from the atmospheric sciences, hydrology, geology, and other areas of geosciences and presents the new advances made in the last 10 years. Topics include chaos synchronization, topological data analysis, new insights on fractals, multifractals and stochasticity, climate dynamics, extreme events, complexity, and causality, among other topics.

Complexity and Evolution of Dissipative Systems

Complexity and Evolution of Dissipative Systems PDF Author: Sergey Vakulenko
Publisher: Walter de Gruyter
ISBN: 3110268280
Category : Mathematics
Languages : en
Pages : 316

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Book Description
This book focuses on the dynamic complexity of neural, genetic networks, and reaction diffusion systems. The author shows that all robust attractors can be realized in dynamics of such systems. In particular, a positive solution of the Ruelle-Takens hypothesis for on chaos existence for large class of reaction-diffusion systems is given. The book considers viability problems for such systems - viability under extreme random perturbations - and discusses an interesting hypothesis of M. Gromov and A. Carbone on biological evolution. There appears a connection with the Kolmogorov complexity theory. As applications, transcription-factors-microRNA networks are considered, patterning in biology, a new approach to estimate the computational power of neural and genetic networks, social and economical networks, and a connection with the hard combinatorial problems.

On Some Aspects of Oscillation Theory and Geometry

On Some Aspects of Oscillation Theory and Geometry PDF Author: Bruno Bianchini
Publisher: American Mathematical Soc.
ISBN: 0821887998
Category : Mathematics
Languages : en
Pages : 208

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Book Description
The aim of this paper is to analyze some of the relationships between oscillation theory for linear ordinary differential equations on the real line (shortly, ODE) and the geometry of complete Riemannian manifolds. With this motivation the authors prove some new results in both directions, ranging from oscillation and nonoscillation conditions for ODE's that improve on classical criteria, to estimates in the spectral theory of some geometric differential operator on Riemannian manifolds with related topological and geometric applications. To keep their investigation basically self-contained, the authors also collect some, more or less known, material which often appears in the literature in various forms and for which they give, in some instances, new proofs according to their specific point of view.

On the Steady Motion of a Coupled System Solid-Liquid

On the Steady Motion of a Coupled System Solid-Liquid PDF Author: Josef Bemelmans
Publisher: American Mathematical Soc.
ISBN: 0821887734
Category : Mathematics
Languages : en
Pages : 102

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Book Description
We study the unconstrained (free) motion of an elastic solid B in a Navier-Stokes liquid L occupying the whole space outside B, under the assumption that a constant body force b is acting on B. More specifically, we are interested in the steady motion of the coupled system {B,L}, which means that there exists a frame with respect to which the relevant governing equations possess a time-independent solution. We prove the existence of such a frame, provided some smallness restrictions are imposed on the physical parameters, and the reference configuration of B satisfies suitable geometric properties.