IPNet Digest Volume 10, Number 05 June 7, 2003 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: Second Announcement: Inverse Problems Theme Year 2003 - 2004 New SIAM Book Series: Fundamentals of Algorithms Special LAA issue on Matrices and Mathematical Biology Table of Contents: Inverse Problems Table of Contents: Inverse Problems in Engineering Table of Contents: Linear Algebra and Its Applications Submissions for IPNet Digest: Mail to ipnet-digest@math.msu.edu Information about IPNet: http://www.mth.msu.edu/ipnet Mail to ipnet-request@math.msu.edu ----------------------------- From: Inverse Problems Theme Year 2003-2004 Subject: Second Announcement: Inverse Problems Theme Year 2003 - 2004 Date: Fri, 30 May 2003 Second Announcement of the meeting Analytic and Geometric Methods in Inverse Problems, Helsinki, Finland, August 25-29 2003 The Finnish Inverse Problems Society together with the Finnish Mathematical Society arranges a theme year of inverse problems in Finland during the academic year 2003-2004. The theme year includes a series of conferences and intensive courses on inverse problems and related topics in mathematics. The aim of the meeting entitled Analytic and Geometric Methods in Inverse Problems is to bring together a number of specialists in inverse problems, and in particular to focus on modern analytic and geometric tools. The preliminary list of invited speakers includes: Tuncay Aktosun Carlos Alves Kari Astala Juan Antonio Barcelo Elena Beretta Khosrow Chadan David Colton Allan Greenleaf Alberto Grunbaum Maarten de Hoop David Isaacson Alexander Katchalov Rainer Kress Yaroslav V. Kurylev Stephen McDowall Adrian Nachman Clifford Nolan Alberto Ruiz William Rundell Vladimir Sharafutdinov Gunther Uhlmann Michael Vogelius We ask the interested to visit the web page of the theme year, http://www.math.hut.fi/inverseyear/ where you find the necessary information about registration and accommodation. Please note that the deadline for registration is July 31, 2003. Just after the opening conference on September 1.-5., there will be a Workshop on Inverse Spectral Problems. It is sponsored by the European Science Foundation's programme Partial Differential Operators and Spectral Theory. The main speakers here are Maciej Zworski (University of Berkeley) Carolyn Gordon (Dartmouth College) David L. Webb (Dartmouth College) Peter Perry (University of Kentucky) Michiel van den Berg (University of Bristol) Slava Kurylev (University of Loughborough) Matti Lassas (University of Helsinki) If you are going to participate in the workshop you should mention this when you do the registration. For young researchers and graduate students, financial support towards the expenses of participation is available both for the opening conference of the theme year and the workshop. Inverse Problems Theme Year 2003 - 2004 inverseyear@math.hut.fi http://www.math.hut.fi/inverseyear/ ----------------------------- From: michelle montgomery Subject: Fundamentals of Algorithms - new SIAM book series Date: Mon, 02 Jun 2003 Call For Manuscripts SIAM Series on Fundamentals of Algorithms SIAM is pleased to announce a new series, Fundamentals of Algorithms, and the first book in the series, _Solving Nonlinear Equations with Newton's Method_, by C. T. Kelley. The goal of the Fundamental of Algorithms series is to provide a collection of short user-oriented books on state-of-the-art numerical methods. Written by experts, the books will provide readers with sufficient knowledge to choose an appropriate method for an application and understand the method's strengths and limitations. The books will cover a range of topics drawn from numerical analysis and scientific computing. The intended audience is researchers and practitioners using the methods, and upper level undergraduates in mathematics, engineering, and computational science. What will distinguish a book in this series is the emphasis on explaining how to best choose a method, algorithm or software to solve a specific type of problem, and describing when a given method works or fails. The theory behind a numerical method will be presented at a level accessible to the practitioner. The books will contain guidance to help the reader troubleshoot solvers and interpret results. MATLAB is the preferred language for codes presented since it can be used across a wide variety of platforms and is an excellent environment for prototyping, testing, and problem solving. The first book in the series, _Solving Nonlinear Equations with Newton's Method_ by C. T. Kelley, is an 104-page user-oriented guide to using Newton's method to solve nonlinear equations. Through algorithms in pseudo-code, practical examples, and MATLAB codes, the author shows how the user can choose an appropriate Newton-type method to solve a nonlinear system. Treated are Newton, Newton-Krylov, and Broyden methods, their weaknesses and strengths, and their implementation. MATLAB codes for the solvers are listed in the book and available over the Web. In launching this series SIAM hopes to publish guides to numerical algorithms that are readily accessible to practitioners, contain practical advice not readily found elsewhere, and are accompanied by understandable codes implementing the algorithms. Possible topics for the series include, but are not limited to: quadrature/numerical integration random number generation structured linear systems (Toeplitz, Hankel, Vandermonde,...) Monte-Carlo algorithms for simulation linear least squares problems algebraic Riccati equations stochastic differential equations large, sparse eigenvalue problems semidefinite optimization the fast Fourier transform discrete ill-posed problems multigrid methods visualization Proposals appropriate for the Fundamentals of Algorithms Series should be sent to: Linda Thiel (Acquisitions Editor) SIAM 3600 University City Science Center Philadelphia, PA 19104-2688 telephone: 215-382-9800 x369 fax: 215-386-7999 e-mail: thiel@siam.org www.siam.org or Nicholas J. Higham (Editor-in-Chief) Department of Mathematics University of Manchester Manchester, M13 9PL, UK telephone: 0161 275-5822 fax: 0161 275-5819 e-mail: higham@ma.man.ac.uk http://www.ma.man.ac.uk/~higham/ ----------------------------- From: Hans Schneider Subject: Special LAA issue on Matrices and Mathematical Biology Date: Tue, 27 May 2003 LINEAR ALGEBRA AND ITS APPLICATIONS Special issue on Matrices and Mathematical Biology Second call for papers Submission deadline extended to 30 November 2003 In the last decade the field of mathematical biology has expanded very rapidly. Biological research furnishes both data on and insight into the workings of biological systems. However, qualitative and quantitative modelling and simulation are still far from allowing current knowledge to be organized into a well-understood structure. Further, the diversity present in mathematical biology, coupled with the absence of a single unifying approach, has inspired the formation of entirely new scientific disciplines such as bioinformatics. Theoretical research activity in mathematical biology is naturally of an interdisciplinary character. It involves mathematical and statistical investigations, sometimes in combination with techniques originating from the computational sciences. In many of these approaches, linear algebra is key to solving the mathematical problems which arise. For instance, in some population models, the asymptotic rate of increase of the population turns out to be the spectral radius of a certain matrix associated with the population, while the other eigenvalues also yield information on the evolution of the population's structure. Conversely, problems in mathematical biology can enrich linear algebra. For example, in attempting to measure the influence of a single matrix entry on a simple eigenvalue, linear algebraists frequently employ the derivative of that eigenvalue with respect to the entry. However, some biologists have proposed the use of the elasticity, or a logarithmic derivative, of an eigenvalue with respect to a matrix entry in order to measure the effect on that eigenvalue of perturbing a matrix entry. Thus linear algebraists are challenged to deepen and develop the understanding of the ways in which the effects of changes in the ecological conditions on the populations can be measured through further theoretical investigations. A recent book by Caswell on matrix population models makes extensive use of linear algebraic techniques. Quoting from the introduction to that book: "Matrix population models -- carefully constructed, correctly analyzed, and properly interpreted - provide a theoretical basis for population models... A goal of this book is to raise the bar of what constitutes rigorous analysis in population models.... The work of the population biologist is too important to settle for less." But Caswell's call for careful mathematical construction and analysis applies to areas beyond the subject of population models; clearly a rigorous approach would benefit all areas of interaction between biology and mathematics. The Special Issue of LAA dedicated to Matrices and Mathematical Biology is intended to both foster and accelerate cross fertilization between those working primarily in linear algebra and those working primarily in mathematical biology. The editors hope that such an issue of LAA will be of benefit to both fields. This special issue will be open for all submissions containing new and meaningful results that advance interaction between linear algebra and mathematical biology. The editors welcome submissions in which linear algebraic methods play an important role for novel approaches to problems arising in mathematical biology, or in which investigations in mathematical biology motivate new tools and problems in linear algebra. Survey papers which discuss specific areas involving the interaction between biology and linear algebra, particularly where such interaction has been successful, are also very welcome. Areas and topics of interest for the special issue include, but are not limited to: metabolistic pathways statistical data analysis linear algebra problems in graph partitioning matrix population models model discrimination in biokinetics linear algebra problems in network analysis and synchronization subspace oriented eigenvalue problems aggregation/disaggregation or related techniques hidden Markov models epidemic models modelling phylogenetic trees All papers submitted must meet the publication standards of Linear Algebra and its Applications and will be refereed in the usual way. They should be submitted to one of the special editors of this issue listed below by 30 November 2003. Michael Dellnitz Department of Mathematics and Computer Science University of Paderborn D-33095 Paderborn Germany dellnitz@upb.de Steve Kirkland Department of Mathematics and Statistics University of Regina Regina, Saskatchewan Canada S4S 0A2 kirkland@math.uregina.ca Michael Neumann Department of Mathematics University of Connecticut Storrs, Connecticut O6269-3OO9 USA neumann@math.uconn.edu Christof Schuette Department of Mathematics & Computer Science Numerical Mathematics/Scientific Computing Free University Berlin Arnimallee 2-6 D-14195 Berlin Germany schuette@math.fu-berlin.de Submitted by: Hans Schneider Mathematics Department Van Vleck Hall University of Wisconsin 480 Lincoln Drive Madison, WI 53706-1313 USA Email: hans@math.wisc.edu Office Phone: 608-262-1402 WWW: http://www.math.wisc.edu/~hans Math Dept Phone: 608-263-3054 Math Dept Fax: 608-263-8891 ----------------------------- From: "Elizabeth Martin" Subject: Contents, Inverse Problems, volume 19, issue 3, June 2003 Date: Thu, 15 May 2003 Inverse Problems June 2003 Volume 19, Issue 3 Table of Contents PAPERS An inverse problem for a layered medium with a point source Rakesh The detection of surface vibrations from interior acoustical pressure T DeLillo, V Isakov, N Valdivia and L Wang Application of the principal characteristics extraction technique to consensus analysis of weather radar rainfall estimates Z Wang, X Pei, J Li and L Guan A `range test' for determining scatterers with unknown physical properties R Potthast, J Sylvester and S Kusiak The linear sampling method for non-absorbing penetrable elastic bodies A Charalambopoulos, D Gintides and K Kiriaki Zero-curvature representation for a chiral-type three-field system D K Demskoi and A G Meshkov Direct regularization of the inversion of real-valued Laplace transforms V V Kryzhniy Tikhonov regularization for electrical impedance tomography on unbounded domains M Lukaschewitsch, P Maass and M Pidcock Learning regularization functionals---a supervised training approach E Haber and L Tenorio The inverse electromagnetic scattering problem for screens F Cakoni, D Colton and E Darrigrand Direct analytic model of the L-curve for Tikhonov regularization parameter selection P J Mc Carthy Inverse spectral problems for Sturm--Liouville operators with singular potentials R O Hryniv and Ya V Mykytyuk Examples of exponential instability for inverse inclusion and scattering problems M Di Cristo and L Rondi Identification of elastic inclusions and elastic moment tensors by boundary measurements H Kang, E Kim and J-Y Lee Determining the Gaussian probability distribution of the best-fit ellipsoid of revolution for a polymer chain from planar projections Y Zhou, D Wirtz and G S Chirikjian Reconstruction of the three-dimensional refractive index in electromagnetic scattering by using a propagation--backpropagation method M V\"ogeler Generalized Gaussian quadrature applied to an inverse problem in antenna theory: II. The two-dimensional case with circular symmetry G D de Villiers, F B T Marchaud and E R Pike An inverse problem in periodic diffractive optics: global uniqueness with a single wavenumber J Elschner, G Schmidt and M Yamamoto Geometry of linear ill-posed problems in variable Hilbert scales P Math\'e and S V Pereverzev BOOK REVIEW Inverse Problems. Activities for Undergarduates C W Groetsch (reviewed by M Yamamoto) All articles are free for 30 days after publication on the web. This issue is available at: http://stacks.iop.org/0266-5611/19/i=3 Submitted by: Elizabeth Martin, Senior Production Editor, Inverse Problems Institute of Physics Publishing Dirac House, Temple Back, Bristol BS1 6BE UK Tel: +44 (0)117 929 7481 (Direct: +44 (0)117 930 1078) Fax: +44 (0)117 929 4318 (Direct: +44 (0)117 920 0764) E-mail: liz.martin@iop.org WWW: http://www.iop.org ----------------------------- From: "James Beck" Subject: Contents, Inverse Problems in Engineering Date: Mon, 5 May 2003 Inverse Problems in Engineering April 2003 Vol. 11, No. 2 Table of Contents Sequential Solution of the Sideways Heat Equation by Windowing of the Data F. Berntsson On the Use of Genetic Algorithms for Solving Ill-Posed Problems N. S. Mera, L. Elliott and D. B. Ingham A Dual Reciprocity Boundary Element Method for the Regularized Numerical Solution of the Inverse Source Problem Associated to the Poisson Equation A. Farcas, L. Elliott, D. B. Ingham, D. Lesnic and N. S. Mera Inverse Scattering by Line Cracks in Elastic Solid T. Rangeloy, P. Dineva and D. Gross Inverse Problems in Engineering December 2002 Vol. 10, No. 6 Table of Contents On the Optimum Synthesis of Four-Bar Linkages Using Differential Evolution and the Geometric Centroid of Precision Positions P. Shiakolas, D. Koladiya and J. Kebrle Nonlinear Parameter Estimation in Laminar Forced Convection Within a Circular Sector Tube J. B. Aparecido and M. N. Ozisik Performance Analysis of Bridge Type GMR Microaccelerometer by Inverse Method Jiunn-Jye Chen, Cheng-I Weng and Jee-Gong Chang A Boundary Element Inverse Formulation for Multiple Point Heat Sources Estimation in a Diffusive System: Application to a 2D Experiment Frederic Lefevre and Christophe Le Niliot Inverse Scattering Algorithms Based on Contrast Source Integral Representations Peter M. Van Den Berg and Aria Abubakar Submitted by: Jim Beck 1935 Danbury W Okemos, MI 48864-1873 517 349-6688 e-mail: jamesverebeck@attbi.com, or beck@egr.msu.edu or jvb@beckeng.com ----------------------------- From: Hans Schneider Subject: LAA contents Date: Fri, 30 May 2003 Linear Algebra and its Applications 15 July 2003 Vol. 368 Table of Contents An SVD-like matrix decomposition and its applications Hongguo Xu Completions of partial P-matrices with acyclic or non-acyclic associated graph C. Jordan, J. R. Torregrosa and A. M. Urbano Existence and construction of nonnegative matrices with complex spectrum Oscar Rojo and Ricardo L. Soto Inequalities for numerical invariants of sets of matrices Jairo Bochi On the positive definite solutions of the matrix equations Xs+/-ATX-tA=In Xin-Guo Liu and Hua Gao Some determinantal inequalities for Hadamard product of matrices Shencan Chen The number of nonconstant invariant polynomials of matrices with several prescribed blocks Gloria Cravo and Fernando C. Silva Enumeration of orbits on cycles for linear and affine groups Daniele A. Gewurz Null spaces of correlation matrices Wayne Barrett and Stephen Pierce Total dilations Jean-Christophe Bourin The doubly graded matrix cone and Ferrers matrices Geir Dahl On semigroups of normal matrices Bojana Zalar The dynamic feedback equivalence over principal ideal domains Jose A. Hermida-Alonso and M. T. Trobajo The edge-isoperimetric problem on the 600-vertex regular solid L. H. Harper and D. Dreier Additive mappings on von Neumann algebras preserving absolute values M. Radjabalipour Lattices generated by orbits of subspaces under finite singular unitary group and its characteristic polynomials You Gao An improved upper bound for Laplacian graph eigenvalues Kinkar ch. Das A Schur complement approach to a general extrapolation algorithm C. Brezinski and M. Redivo Zaglia Positive definite Hankel matrices of minimal condition J. M. Varah Partitioning the edge set of a bipartite graph into chain packings: complexity of some variations D. de Werra Effect of linear perturbation on spectra of matrices R. Alam and S. Bora The continuous-time Rayleigh quotient flow on the sphere R. Mahony and P. -A. Absil Finite Blaschke products of contractions Hwa-Long Gau and Pei Yuan Wu Asymptotic similarity-preserving linear maps on ? Guoxing Ji On the Laplacian spectral radius of a tree Ji-Ming Guo http://www.sciencedirect.com/science/issue/5653-2003-996319999-433305 Submitted by: Hans Schneider Mathematics Department Van Vleck Hall University of Wisconsin 480 Lincoln Drive Madison, WI 53706-1313 USA Email: hans@math.wisc.edu Office Phone: 608-262-1402 WWW: http://www.math.wisc.edu/~hans Math Dept Phone: 608-263-3054 Math Dept Fax: 608-263-8891 ------- end -------