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1990

Volume 32, Issue 4, pp. 537-722


Large-Amplitude Periodic Oscillations in Suspension Bridges: Some New Connections with Nonlinear Analysis

A. C. Lazer and P. J. McKenna

SIAM Rev. 32, pp. 537-578 (42 pages) | Cited 63 times

Online Publication Date: July 18, 2006

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This paper surveys an area of nonlinear functional analysis and its applications. The main application is to the existence and multiplicity of periodic solutions of a possible mathematical models of nonlinearly supported bending beams, and their possible application to nonlinear behavior as observed in large-amplitude flexings in suspension bridges. A second area, periodic flexings in a floating beam, also nonlinearly supported, is covered at the end of the paper.

Stochastic Perturbation Theory

G. W. Stewart

SIAM Rev. 32, pp. 579-610 (32 pages) | Cited 16 times

Online Publication Date: July 18, 2006

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In this paper classical matrix perturbation theory is approached from a probabilistic point of view. The perturbed quantity is approximated by a first-order perturbation expansion, in which the perturbation is assumed to be random. This permits the computation of statistics estimating the variation in the perturbed quantity. Up to the higher-order terms that are ignored in the expansion, these statistics tend to be more realistic than perturbation bounds obtained in terms of norms. The technique is applied to a number of problems in matrix perturbation theory, including least squares and the eigenvalue problem.

The Convergence of Linear Stationary Iterative Processes for Solving Singular Unstructured Systems of Linear Equations

Achiya Dax

SIAM Rev. 32, pp. 611-635 (25 pages) | Cited 17 times

Online Publication Date: July 18, 2006

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This paper reviews the convergence properties of linear stationary iterative processes for solving large unstructured systems of linear equations. Special attention is given to the case where the system to be solved is singular and possibly inconsistent.
The review starts by investigating the iteration ${\bf x}_{k + 1} = H{\bf x}_k + {\bf f},\, k = 0,1,2, \cdots $, when the system $(I - H){\bf x} = {\bf f}$ is inconsistent. In this case the sequence $\left\{ {\bf x_k } \right\}$ always diverges. Nevertheless, when $H$ is “convergent” there exists a vector ${\bf q} \in \,{\text{Null}}(I - H)$ such that the sequence $\hat {\bf x}_k = {\bf x}_k - k{\bf q}$ converges. The limit of this sequence, $\hat {\bf x}$, solves a certain least-squares problem, and the sequence of residual vectors, ${\bf r}_k = (I - H){\bf x}_k - {\bf f}$, converges to $(I - H)\hat {\bf x} - {\bf f}$. Furthermore, if $H$ is similar to a real diagonal matrix then the corresponding norms of ${\bf r}_k $ and $\hat {\bf x}_k - \hat {\bf x}$ decreases monotonically. More can be said when ${\bf x}_0 \in {\text{Range}}(I - H)$.
There are several iterative methods for solving a symmetric positive semidefinite system of linear equations, $G{\bf x} = {\bf h}$, that have the form ${\bf x}_{k + 1} = Q^{ - 1} (Q - G){\bf x}_k + Q^{ - 1} {\bf h}$. Here the iteration matrix, $H = Q^{ - 1} (Q - G)$, is convergent whenever the matrix $P = Q + Q^T - G$ is positive definite. In this case we obtain the surprising result that the sequence of residuals, $\{ G{\bf x}_k - {\bf h}\} $, converges even when the system $G{\bf x} = {\bf h}$ is inconsistent.
The developed theory reveals interesting properties of the “basic” iterative methods (e.g., Richardson’s method, Jacobi’s method, SOR, and SSOR) with minimal assumptions on the structure of $G$. For example, if $H$ is convergent and symmetric as with Richardson’s method, then the sequences $\{ ||\hat {\bf x}_k - \hat {\bf x}||\} $ and $\{ ||G{\bf x}_k - {\bf h}||\} $ decrease monotonically, and the sequence $\{ G{\bf x}_k - {\bf h}\} $ converges to $G\hat {\bf x} - {\bf h}$, where $\hat {\bf x}$ solves the least-squares problem: minimize $||{\bf Gx}_k - {\bf h}||^2 $. Moreover, if ${\bf x}_0 \in {\text{Range}}(G)$ and the system $(I - H){\bf x} = {\bf f}$ is solvable, then the sequence $\{ {\bf x}_k \} $ converges to the minimum-norm solution of this system.
The paper ends with a discussion of iterative methods for solving a general linear system, $A{\bf x} = {\bf b}$, where $A$ is large, sparse, and unstructured. These methods can be divided into two classes. One is aimed at solving the normal equations $A^T A{\bf x} = A^T {\bf b}$ (e.g., column SOR or Cimmino’s method), and one is aimed at solving the Björck–Elfving equations ${\bf x} = A^T {\bf y}$ and $AA^T {\bf y} = {\bf b}$ (e.g., Kaczmarz’s method). It is shown that in both cases the theory developed for symmetric positive semidefinite systems enables us to characterize the behavior of the methods and to derive simplified proofs of convergence.

Code Recognition with Neural Network Dynamical Systems

Clark Jeffries

SIAM Rev. 32, pp. 636-651 (16 pages)

Online Publication Date: July 18, 2006

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A class of dynamical systems called neural networks can be used to solve a variety of finite choice problems including the problem of correcting binary code.

Nonlinear Phenomena in a Column of Liquid in a Rotating Manometer

S. Graham Kelly

SIAM Rev. 32, pp. 652-659 (8 pages)

Online Publication Date: July 18, 2006

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The stationary configuration of a column of liquid in a U-tube manometer rotating about an axis other than its axis of symmetry is predicted using a pressure distribution derived from Euler’s equation and from the governing differential equation of motion. Nonlinear behavior is evident in that the stationary position of the liquid air interface will “jump” at critical values of the speed of rotation. A hysteresis effect is predicted in that the “jump” occurs at a different speed if the speed is being decreased rather than increased. Analysis defines regions of stable and unstable stationary positions.

Convective Diffusion in Two-Dimensional Incompressible Linear Flow

Peter S. Bernard

SIAM Rev. 32, pp. 660-666 (7 pages) | Cited 2 times

Online Publication Date: July 18, 2006

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An exact solution for the Green’s function governing convective diffusion in two-dimensional, linear, incompressible flow is computed by elementary means.

Generalization of the “universal pivot function” and its use in constructing confidence intervals and sets

John E. Angus

SIAM Rev. 32, pp. 667-670 (4 pages)

Online Publication Date: July 18, 2006

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This paper gives a general method of constructing confidence intervals or sets for a real parameter $\theta $ based on a slight generalization of the usual “pivot function” approach taken in undergraduate statistics courses. The method is generally applicable and leads to the usual confidence intervals for the standard problems.

Addendum: Stokes Flow: An Elementary Treatment

Michael A. B. Deakin

SIAM Rev. 32, pp. 671-671 (1 page)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Simultaneous Functional Equations

Paul Schweitzer

SIAM Rev. 32, pp. 672-672 (1 page)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Exponentially Windowed Estimates of a Periodically Sampled Time-Series, and Its First and Second Derivatives Using Quadratic Regression

Ken Lever

SIAM Rev. 32, pp. 672-673 (2 pages)

Online Publication Date: July 18, 2006

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Orthogonal Matrices and the Matrix Exponential

Dennis S. Bernstein

SIAM Rev. 32, pp. 673-673 (1 page)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Cyclic Pursuit with Lead Angle

M. S. Klamkin

SIAM Rev. 32, pp. 673-673 (1 page)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Cyclic Pursuit with Lead Angle (Quickie)

SIAM Rev. 32, pp. 674-674 (1 page)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Late Solutions

D. P. Laurie and B. Tibken

SIAM Rev. 32, pp. 674-674 (1 page)

Online Publication Date: July 18, 2006

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Abstract Unavailable

The Complexity of the Standard Form of an Integer (K. V. Lever)

Robert E. Terrell and H. L. Abbott

SIAM Rev. 32, pp. 674-681 (8 pages)

Online Publication Date: July 18, 2006

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Two Determinant Inequalities (Ralph Kelsey)

Michael Renardy

SIAM Rev. 32, pp. 681-682 (2 pages)

Online Publication Date: July 18, 2006

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On the Number of Roots of a Transcendental Equation

D. K. Cohoon, R. M. Purcell, Michael Renardy, and C. C. Grosjean

SIAM Rev. 32, pp. 682-683 (2 pages)

Online Publication Date: July 18, 2006

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A Complement of Weber’s Integral (J. W. Miles)

Norbert Ortner and M. L. Glasser

SIAM Rev. 32, pp. 683-684 (2 pages)

Online Publication Date: July 18, 2006

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Abstract Unavailable

A Functional Equation (David W. Wilson)

D. G. Rogers and Peter Borwein

SIAM Rev. 32, pp. 684-686 (3 pages)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Probabilistic Ethics

Ted W. Lockhart, Robert Ingle, and Peter Wollan

SIAM Rev. 32, pp. 686-688 (3 pages)

Online Publication Date: July 18, 2006

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Generalized Concavity (Mordecai Avriel, Walter E. Diewert, Siegfried Schaible, and Israel Zang)

Jonathan Borwein

SIAM Rev. 32, pp. 689-690 (2 pages)

Online Publication Date: July 18, 2006

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Matrix Computations; Second Edition (Gene Golub and Charles F. Van Loan)

James W. Demmel

SIAM Rev. 32, pp. 690-691 (2 pages)

Online Publication Date: July 18, 2006

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Low-Gravity Fluid Mechanics: Mathematical Theory of Capillary Phenomena (A. D. Myshkis, V. G. Babskii, N. D. Kopachevskii, L. A. Slobozhanin, and A. D. Tyuptsov; R. S. Wadhwa, trans.)

Hendrik A. Dijkstra

SIAM Rev. 32, pp. 691-693 (3 pages)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Percolation (Geoffrey Grimmett)

Richard T. Durrett

SIAM Rev. 32, pp. 693-693 (1 page)

Online Publication Date: July 18, 2006

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Vibration and Coupling of Continuous Systems: Asymptotic Methods (Jacqueline Sanchez Hubert and Enrique Sanchez Palencia)

Alp Eden

SIAM Rev. 32, pp. 693-694 (2 pages)

Online Publication Date: July 18, 2006

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Control of Partially-Known Dynamical Systems (A. A. Bahnasawi and M. S. Mahmoud)

Ali Feliachi

SIAM Rev. 32, pp. 694-695 (2 pages)

Online Publication Date: July 18, 2006

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Rational Kinematics (Jorge Angeles)

Ferdinand Freudenstein

SIAM Rev. 32, pp. 695-696 (2 pages)

Online Publication Date: July 18, 2006

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Variational Principles of Continuum Mechanics with Engineering Applications. Volume 2: Introduction to Optimal Design Theory (Vadim Komkov)

J. Haug Edward

SIAM Rev. 32, pp. 696-697 (2 pages)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Computational Hydraulics: An Introduction (Cornelis B. Vreugdenhil)

K.-Peter Holz

SIAM Rev. 32, pp. 697-698 (2 pages)

Online Publication Date: July 18, 2006

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Elements of Differentiable Dynamics and Bifurcation Theory (David Ruelle)

Nicholas D. Kazarinoff

SIAM Rev. 32, pp. 698-698 (1 page)

Online Publication Date: July 18, 2006

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Polynomials (E. J. Barbeau)

M. S. Klamkin

SIAM Rev. 32, pp. 699-700 (2 pages)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Introduction to Numerical Linear Algebra and Optimisation (Philippe G. Ciarlet with Bernadette Miara and Jean-Marie Thomas; A. Buttigieg, trans.)

John C. Nash

SIAM Rev. 32, pp. 700-702 (3 pages) | Cited 1 time

Online Publication Date: July 18, 2006

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Fundamentals of Pattern Recognition (Monique Pavel)

Yoh-Han Pao

SIAM Rev. 32, pp. 702-702 (1 page)

Online Publication Date: July 18, 2006

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Analysis of Skeletal Structural Systems in the Elastic and Elastic-Plastic Range (Adam Borkowski)

E. Bruce Pitman

SIAM Rev. 32, pp. 702-703 (2 pages)

Online Publication Date: July 18, 2006

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Initial-Boundary Value Problems and the Navier-Stokes Equations (Heinz-Otto Kreiss and Jens Lorenz)

Gustavo Ponce

SIAM Rev. 32, pp. 703-704 (2 pages)

Online Publication Date: July 18, 2006

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Probabilistic Reasoning in Intelligent Systems: Networks of Plausible Inference (Judea Pearl)

F. J. Radermacher

SIAM Rev. 32, pp. 704-707 (4 pages)

Online Publication Date: July 18, 2006

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Continuous Decoupling Transformations for Linear Boundary Value Problems (P. M. van Loon)

R. D. Russell

SIAM Rev. 32, pp. 707-708 (2 pages)

Online Publication Date: July 18, 2006

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Large Scale Systems: Decentralization, Structure Constraints and Fixed Modes (L. Trave, A. Titli, and A. Tarras)

M. Erol Sezer

SIAM Rev. 32, pp. 708-709 (2 pages)

Online Publication Date: July 18, 2006

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Abstract Unavailable

Other Books Received

SIAM Rev. 32, pp. 709-717 (9 pages)

Online Publication Date: July 18, 2006

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New Members

SIAM Rev. 32, pp. 718-720 (3 pages)

Online Publication Date: July 18, 2006

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Report of the Treasurer for the Year Ended December 31, 1989

SIAM Rev. 32, pp. 721-722 (2 pages)

Online Publication Date: July 18, 2006

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