Chen, Ben M., Lin, Zongli , Shamash, Yacov

Linear Systems Theory
A Structural Decomposition Approach

Series : Control Engineering

2004, XVI, 416 p. 9 illus., Hardcover
ISBN: 3-7643-3779-6

About this textbook

This text is the first comprehensive treatment of structural decompositions of various types of linear systems, including autonomous, unforced or unsensed, strictly proper, non-strictly proper, and descriptor or singular systems. Structural properties play an important role in the understanding of linear systems and also provide insight to facilitate the solution of control problems related to stabilization, disturbance decoupling, robust and optimal control. Applications can be extended to industrial process control, aircraft and ship control, process automation control, and many other types of engineering systems. The authors employ a unique structural decomposition approach to break down an overall system into various subsystems, each with distinct features. The simplicity of these subsystems and their interconnections lead to deep insight about the design of feedback control systems for desired closed-loop performance, stability, and robustness. All results and case studies are presented in both continuous- and discrete-time settings. Exercises, as well as MATLAB-based computational and design algorithms utilizing the Linear Systems Toolkit, are included to reinforce and demonstrate the concepts treated throughout the book. Topics covered include: * Basic Concepts of Linear Systems Theory * Decomposition of Unforced and/or Unsensed Systems, Proper Systems and their Properties * Decomposition of Descriptor Systems and their Properties * Cascade and Inner-Outer Factorizations * Structural Assignment through Sensor/Actuator Selections * State Feedback Control with Time-Scale and Eigenstructure Assignment * Disturbance Decoupling with Static Output Feedback Linear Systems Theory may be used as a textbook for advanced undergraduate and graduate students in aeronautics and astronautics, applied mathematics, chemical, electrical and mechanical engineering. It may also serve as a valuable self-study reference for researchers and engineering practitioners in areas related to systems and control theory.

Table of contents

Introduction and Preview * Mathematical Background * Review of Linear Systems Theory * Decompositions of Unforced and/or Unsensed Systems * Decompositions of Proper Systems * Decompositions of Descriptor Systems * Structural Mappings of Bilinear Transformations * System Factorizations * Structural Assignment via Sensor/Actuator Selection * Time-Scale and Eigenstructure Assignment via State Feedback * Disturbance Decoupling with Static Output Feedback * A Software Toolbox * Bibliography * Index

Heil, Christopher (Ed.)

Harmonic Analysis and Applications
In Honor of J.J. Benedetto

Series : Applied and Numerical Harmonic Analysis

2005, XVI, 320 p. 30 illus., Hardcover
ISBN: 3-7643-3778-8

About this book

This volume, in honor of John J. Benedetto on the occasion of his 65th birthday, features invited articles which examine a wide range of topics in harmonic analysis, number theory, weighted norm inequalities, wavelet theory, time-frequency analysis, and sampling theory. Benedetto has made fundamental and lasting contributions to many areas of harmonic analysis and related fields. Although the scope of the book is broad, chapters are clustered by topic to provide authoritative expositions that will be of lasting interest. The original papers collected here are written by prominent, well-respected researchers and professionals in the field. "Harmonic Analysis and its Applications" pays tribute to Benedetto's many achievements and expresses an appreciation for both the mathematical and personal inspiration that he has given to so many students, coauthors, and colleagues. Contributors include: A. Aldroubi, W. Czaja, J.-P. Gabardo, H. Feichtinger, K. Groechenig, H. Heinig, J. Lakey, D. Walnut, Y. Wang, G. Weiss, D. Labate, G. Zimmermann.

Table of contents

Frames and Atomic Decompositions / Aldroubi, Cabrelli, Molter * Redundancy in the Frequency Domain / Baggett * The Gibbs Phenomenon in Higher Dimensions / Benke * A Physical Interpretation for Finite Tight Frames / Casazza, Fickus, Kovacevic, Leon, Tremain * Density Results for Frames of Exponentials / Casazza, Christensen, Linder, Li * Recent Developments in the Balian-Low Theorem / Czaja * The Useful Generalizations of Orthonormal Basis / Davis * An Axiomatic Approach to Error Analysis / Feichtinger * Recent Advances in Finite Frame Theory / Fickus, Kornelson * Some Problems Related to the Distributional Zak Transform / Gabardo * Pseudodifferential Operators for Pedestrians / Groechenig * The Theory of Composite Wavelets / Guo, Labbate, Lim, Weiss, Wilson * On Gabor Duality Characterizations / Hayashi, Li, Sorrels * Linear Independence of Finite Gabor Systems / Heil * Differential Inequalities in Weighted L^P Spaces / Heinig * Periodic Nonuniform Sampling in Shift Invariant Spaces / Hogan, Lakey * Spectra, Tiles, and the Fuglede Problem / Jorgensen, Wang * Explicit Cross Sections of Singly Generated Group Actions / Larson, Schulz, Speegle, Taylor * Sampling on Unions of One-Dimensional Lattices / Walnut * Semidiscrete Multipliers / Zimmermann


Kowalski, Oldrich; Musso, Emilio E.; Perrone, Domenico (Eds.)

Complex, Contact and Symmetric Manifolds
In Honor of L. Vanhecke

Series : Progress in Mathematics , Vol. 234

2005, X, 278 p., Hardcover
ISBN: 3-76436-3850-4

About this book

This volume contains research and survey articles by well known and respected mathematicians on differential geometry and topology that have been collected and dedicated in honor of Lieven Vanhecke, as a tribute to his many fruitful and inspiring contributions to these fields. The papers, all written with the necessary introductory and contextual material, describe recent developments and research trends in spectral geometry, the theory of geodesics and curvature, contact and symplectic geometry, complex geometry, algebraic topology, homogeneous and symmetric spaces, and various applications of partial differential equations and differential systems to geometry. One of the key strengths of these articles is their appeal to non-specialists, as well as researchers and differential geometers. Contributors: D.E. Blair; E. Boeckx; A.A. Borisenko; G. Calvaruso; V. Cortes; P. de Bartolomeis; J.C. Diaz-Ramos; M. Djoric; C. Dunn; M. Fernandez; A. Fujiki; E. Garcia-Rio; P.B. Gilkey; O. Gil-Medrano; L. Hervella; O. Kowalski; V. Munoz; M. Pontecorvo; A.M. Naveira; T. Oguro; L. Schafer; K. Sekigawa; C-L. Terng; K. Tsukada; Z. Vla?ek; E. Wang; and J.A. Wolf.

Table of contents

* Preface * Acknowledgments * Authorsf Addresses * List of Participants * D.E. Blair: Curvature of Contact Metric Manifolds * E. Boeckx: A case for curvature: the unit tangent bundle * A.A. Borisenko: Convex hypersurfaces in Hadamard manifolds * G. Calvaruso: Contact metric geometry of the unit tangent sphere bundle * V. Cortes and L. Schafer: Topological-antitopological fusion equations, pluriharmonic maps and special Kahler manifolds * P. de Bartolomeis: Z2 and Z-Deformation Theory for Holomorphic and Symplectic Manifolds * J.C. Diaz-Ramos, E. Garcia-Rio and L. Hervella: Total scalar curvatures of geodesic spheres and of boundaries of geodesic disks * M. Djoric: Commutative condition on the second fundamental form of CR submanifolds of maximal CR dimension of a Kahler manifold * C. Dunn and P.B. Gilkey: Curvature homogeneous pseudo-Riemannian manifolds which are not locally homogeneous * M. Fernandez and V. Munoz: The Geography of Non-formal Manifolds * A. Fujiki and M. Pontecorvo: On Hermitian geometry of complex surfaces * O. Gil-Medrano: Unit vector fields that are critical points of the volume and of the energy: characterization and examples * O. Kowalski and Z. Vla?ek: On 3-dimensional Riemannian manifolds with prescribed Ricci eigenvalues * A.M. Naveira: Two problems in real and complex integral geometry * T. Oguro and K. Sekigawa: Notes on the Goldberg conjecture in dimension four * C-L. Terng and E. Wang: Curved flats, exterior differential systems, and conservation laws * K. Tsukada: Symmetric submanifolds of Riemannian symmetric spaces and symmetric R-spaces * J.A. Wolf: Complex forms of Quaternionic Symmetric Spaces

Bucur, Dorin, Buttazzo, Giuseppe

Variational Methods in Shape Optimization Problems

Series : Progress in Nonlinear Differential Equations and Their Applications , Preliminary entry 1003

2005, Approx. 350 p. 10 illus., Hardcover
ISBN: 3-7643-4359-1

About this textbook

The study of shape optimization problems involves a wide area of academic research and applications to the real world. In this work these problems are treated from the classical and modern perspectives and target a broad audience of graduate students in pure and applied mathematics, as well as engineers requiring a solid mathematical basis for the solution of practical problems. Key topics: * Presents foundational introduction to shape optimization theory * Studies some classical problems: the isoperimetric problem and the Newton problem involving the best aerodynamical shape, optimization problems over classes of convex domains * Treats optimal control problems under a general scheme, giving a topological framework, a survey of G-convergence, problems governed by ODE * Examines shape optimization problems with Dirichlet and Neumann condition on the free boundary, the existence of classical solutions * Poses some open questions Driven by several good examples and illustrations, the book requires only a standard knowledge in the calculus of variations, differential equations, and functional analysis.

Table of contents

Preface * Introduction to shape optimization theory and some classical problems * Optimization problems over classes of convex domains * Optimal control problems: a general scheme * Shape optimization problems with Dirichlet condition on the free boundary * Existence of classical solutions * Optimization problems for functions of eigenvalues * Bibliography * Index

Friedman, Yaakov

Physical Applications of Homogenous Balls

Series : Progress in Mathematical Physics , Vol. 40

2004, XXIV, 280 p., 77 illus. (72 line art, 5 halftones), 5 tables, Hardcover
ISBN: 3-7643-3339-1

About this book

One of the mathematical challenges of modern physics lies in the development of new tools to efficiently describe different branches of physics within one mathematical framework. This text introduces precisely such a broad mathematical model, one that gives a clear geometric expression of the symmetry of physical laws and is entirely determined by that symmetry. The first three chapters discuss the occurrence of bounded symmetric domains (BSDs) or homogeneous balls and their algebraic structure in physics. It is shown that the set of all possible velocities is a BSD with respect to the projective group; the Lie algebra of this group, expressed as a triple product, defines relativistic dynamics. The particular BSD known as the spin factor is exhibited in two ways: first, as a triple representation of the Canonical Anticommutation Relations, and second, as a ball of symmetric velocities. The associated group is the conformal group, and the triple product on this domain gives a representation of the geometric product defined in Clifford algebras. It is explained why the state space of a two-state quantum mechanical system is the dual space of a spin factor. Ideas from Transmission Line Theory are used to derive the explicit form of the operator Mobius transformations. The book further provides a discussion of how to obtain a triple algebraic structure associated to an arbitrary BSD; the relation between the geometry of the domain and the algebraic structure is explored as well. The last chapter contains a classification of BSDs revealing the connection between the classical and the exceptional domains. With its unifying approach to mathematics and physics, this work will be useful for researchers and graduate students interested in the many physical applications of bounded symmetric domains. It will also benefit a wider audience of mathematicians, physicists, and graduate students working in relativity, geometry, and Lie theory.

Table of contents

* Preface * List of Figures * List of Tables * Relativity Based on Symmetry * The Real Spin Domain * The Complex Spin Factor and Applications * The Classical Bounded Symmetric Domains * The Algebraic Structure of Homogeneous Balls * Classification of JBW*-triple Factors * References * Index