The Method of Normal Forms

The Method of Normal Forms PDF Author: Ali H. Nayfeh
Publisher: John Wiley & Sons
ISBN: 352741097X
Category : Science
Languages : en
Pages : 344

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Book Description
In this introductory treatment Ali Nayfeh presents different concepts from dynamical systems theory and nonlinear dynamics in a rigorous yet plan way. He systematically introduces models and techniques and states the relevant ranges of validity and applicability. The reader is provided with a clear operational framework for consciously use rather than focused on the underlying mathematical apparatus. The exposition is largely by means of examples, dealt with up to their final outcome. For most of the examples, the results obtained with the method of normal forms are equivalent to those obtained with other perturbation methods, such as the method of multiple scales and the method of averaging. The previous edition had a remarkable success by researchers from all over the world working in the area of nonlinear dynamics and their applications in engineering. Additions to this new edition concern major topics of current interest. In particular, the author added three new chapters dedicated to Maps, Bifurcations of Continuous Systems, and Retarded Systems. In particular the latter has become of major importance in several applications, both in mechanics and in different areas. Accessible to engineers and applied scientist involved with nonlinear dynamics and their applications in a wide variety of fields. It is assumed that readers have a knowledge of basic calculus as well as the elementary properties of ordinary-differential equations.

Database Design and Relational Theory

Database Design and Relational Theory PDF Author: C. J. Date
Publisher: "O'Reilly Media, Inc."
ISBN: 1449328016
Category : Computers
Languages : en
Pages : 277

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Book Description
Because databases often stay in production for decades, careful design is critical to making the database serve the needs of your users over years, and to avoid subtle errors or performance problems. In this book, C.J. Date, a leading exponent of relational databases, lays out the principles of good database design.

Nonlinear Dynamics

Nonlinear Dynamics PDF Author: Peter B. Kahn
Publisher: Courier Corporation
ISBN: 0486780457
Category : Science
Languages : en
Pages : 419

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Book Description
.".. an unabridged and corrected republication of the edition originally published in the 'Wiley Series in Nonlinear Science' by John Wiley & Sons, Inc., New York, in 1998"--Title page verso.

Local Bifurcations, Center Manifolds, and Normal Forms in Infinite-Dimensional Dynamical Systems

Local Bifurcations, Center Manifolds, and Normal Forms in Infinite-Dimensional Dynamical Systems PDF Author: Mariana Haragus
Publisher: Springer Science & Business Media
ISBN: 0857291122
Category : Mathematics
Languages : en
Pages : 338

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Book Description
An extension of different lectures given by the authors, Local Bifurcations, Center Manifolds, and Normal Forms in Infinite Dimensional Dynamical Systems provides the reader with a comprehensive overview of these topics. Starting with the simplest bifurcation problems arising for ordinary differential equations in one- and two-dimensions, this book describes several tools from the theory of infinite dimensional dynamical systems, allowing the reader to treat more complicated bifurcation problems, such as bifurcations arising in partial differential equations. Attention is restricted to the study of local bifurcations with a focus upon the center manifold reduction and the normal form theory; two methods that have been widely used during the last decades. Through use of step-by-step examples and exercises, a number of possible applications are illustrated, and allow the less familiar reader to use this reduction method by checking some clear assumptions. Written by recognised experts in the field of center manifold and normal form theory this book provides a much-needed graduate level text on bifurcation theory, center manifolds and normal form theory. It will appeal to graduate students and researchers working in dynamical system theory.

Normal Forms, Melnikov Functions and Bifurcations of Limit Cycles

Normal Forms, Melnikov Functions and Bifurcations of Limit Cycles PDF Author: Maoan Han
Publisher: Springer Science & Business Media
ISBN: 1447129180
Category : Mathematics
Languages : en
Pages : 408

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Book Description
Dynamical system theory has developed rapidly over the past fifty years. It is a subject upon which the theory of limit cycles has a significant impact for both theoretical advances and practical solutions to problems. Hopf bifurcation from a center or a focus is integral to the theory of bifurcation of limit cycles, for which normal form theory is a central tool. Although Hopf bifurcation has been studied for more than half a century, and normal form theory for over 100 years, efficient computation in this area is still a challenge with implications for Hilbert’s 16th problem. This book introduces the most recent developments in this field and provides major advances in fundamental theory of limit cycles. Split into two parts, the first focuses on the study of limit cycles bifurcating from Hopf singularity using normal form theory with later application to Hilbert’s 16th problem, while the second considers near Hamiltonian systems using Melnikov function as the main mathematical tool. Classic topics with new results are presented in a clear and concise manner and are accompanied by the liberal use of illustrations throughout. Containing a wealth of examples and structured algorithms that are treated in detail, a good balance between theoretical and applied topics is demonstrated. By including complete Maple programs within the text, this book also enables the reader to reconstruct the majority of formulas provided, facilitating the use of concrete models for study. Through the adoption of an elementary and practical approach, this book will be of use to graduate mathematics students wishing to study the theory of limit cycles as well as scientists, across a number of disciplines, with an interest in the applications of periodic behavior.

Averaging Methods in Nonlinear Dynamical Systems

Averaging Methods in Nonlinear Dynamical Systems PDF Author: Jan A. Sanders
Publisher: Springer Science & Business Media
ISBN: 1475745753
Category : Mathematics
Languages : en
Pages : 259

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Book Description
In this book we have developed the asymptotic analysis of nonlinear dynamical systems. We have collected a large number of results, scattered throughout the literature and presented them in a way to illustrate both the underlying common theme, as well as the diversity of problems and solutions. While most of the results are known in the literature, we added new material which we hope will also be of interest to the specialists in this field. The basic theory is discussed in chapters two and three. Improved results are obtained in chapter four in the case of stable limit sets. In chapter five we treat averaging over several angles; here the theory is less standardized, and even in our simplified approach we encounter many open problems. Chapter six deals with the definition of normal form. After making the somewhat philosophical point as to what the right definition should look like, we derive the second order normal form in the Hamiltonian case, using the classical method of generating functions. In chapter seven we treat Hamiltonian systems. The resonances in two degrees of freedom are almost completely analyzed, while we give a survey of results obtained for three degrees of freedom systems. The appendices contain a mix of elementary results, expansions on the theory and research problems.

Joe Celko's SQL for Smarties

Joe Celko's SQL for Smarties PDF Author: Joe Celko
Publisher: Morgan Kaufmann
ISBN: 9781558605763
Category : Computers
Languages : en
Pages : 580

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Book Description
An industry consultant shares his most useful tips and tricks for advanced SQL programming to help the working programmer gain performance and work around system deficiencies.

Geometrical Methods in the Theory of Ordinary Differential Equations

Geometrical Methods in the Theory of Ordinary Differential Equations PDF Author: V.I. Arnold
Publisher: Springer Science & Business Media
ISBN: 1461210372
Category : Mathematics
Languages : en
Pages : 366

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Book Description
Since the first edition of this book, geometrical methods in the theory of ordinary differential equations have become very popular and some progress has been made partly with the help of computers. Much of this progress is represented in this revised, expanded edition, including such topics as the Feigenbaum universality of period doubling, the Zoladec solution, the Iljashenko proof, the Ecalle and Voronin theory, the Varchenko and Hovanski theorems, and the Neistadt theory. In the selection of material for this book, the author explains basic ideas and methods applicable to the study of differential equations. Special efforts were made to keep the basic ideas free from excessive technicalities. Thus the most fundamental questions are considered in great detail, while of the more special and difficult parts of the theory have the character of a survey. Consequently, the reader needs only a general mathematical knowledge to easily follow this text. It is directed to mathematicians, as well as all users of the theory of differential equations.

Normal Forms and Unfoldings for Local Dynamical Systems

Normal Forms and Unfoldings for Local Dynamical Systems PDF Author: James Murdock
Publisher: Springer Science & Business Media
ISBN: 0387217851
Category : Mathematics
Languages : en
Pages : 508

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Book Description
This is the most thorough treatment of normal forms currently existing in book form. There is a substantial gap between elementary treatments in textbooks and advanced research papers on normal forms. This book develops all the necessary theory 'from scratch' in just the form that is needed for the application to normal forms, with as little unnecessary terminology as possible.

The Myth of Normal

The Myth of Normal PDF Author: Gabor Maté, MD
Publisher: Penguin
ISBN: 059308389X
Category : Psychology
Languages : en
Pages : 560

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Book Description
The instant New York Times bestseller By the acclaimed author of In the Realm of Hungry Ghosts, a groundbreaking investigation into the causes of illness, a bracing critique of how our society breeds disease, and a pathway to health and healing. In this revolutionary book, renowned physician Gabor Maté eloquently dissects how in Western countries that pride themselves on their healthcare systems, chronic illness and general ill health are on the rise. Nearly 70 percent of Americans are on at least one prescription drug; more than half take two. In Canada, every fifth person has high blood pressure. In Europe, hypertension is diagnosed in more than 30 percent of the population. And everywhere, adolescent mental illness is on the rise. So what is really “normal” when it comes to health? Over four decades of clinical experience, Maté has come to recognize the prevailing understanding of “normal” as false, neglecting the roles that trauma and stress, and the pressures of modern-day living, exert on our bodies and our minds at the expense of good health. For all our expertise and technological sophistication, Western medicine often fails to treat the whole person, ignoring how today’s culture stresses the body, burdens the immune system, and undermines emotional balance. Now Maté brings his perspective to the great untangling of common myths about what makes us sick, connects the dots between the maladies of individuals and the declining soundness of society—and offers a compassionate guide for health and healing. Cowritten with his son Daniel, The Myth Of Normal is Maté’s most ambitious and urgent book yet.