IPNet Digest Volume 5, Number 06 June 29, 1998 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: International Conference on Inverse Problems International Workshop on Nonlinear & Improperly Posed Problems SIAM Conference on Optimization SIAM Conference on Applications of Dynamical Systems School on Wavelets in the Geosciences New book: Introduction to Inverse Problems in Imaging New books on Scattering Theory, Tomography, Image Processing Table of Contents: Inverse Problems Table of Contents: Linear Algebra and Its Applications Submissions for IPNet Digest: Mail to ipnet-digest@math.msu.edu Information about IPNet: Mail to ipnet-request@math.msu.edu http://www.mth.msu.edu/ipnet ------------------------------ From: BERTERO@ge.infn.it Subject: International Conference on Inverse Problems Date: Thu, 11 Jun 1998 CONFERENCE ANNOUNCEMENT Convegno Internazionale sui Problemi Inversi International Conference on Inverse Problems 28 September- 2 October 1998 Vietri sul Mare (Sa) , Italy Sponsored by Comitato Nazionale Scienze Matematiche and Gruppo Nazionale Informatica Matematica, Consiglio Nazionale delle Ricerche ( CNR ). Site of the conference: IASS (International Institute for Advanced Studies), Vietri sul mare, Salerno, Italy. The aim of the conference is to bring together mathematicians, physicists and engineers with interest in various fields of the theory and applications of Inverse Problems; to promote an exchange of ideas and methods and provide an overview of the state of the art as well as of the most recent results. Topics will include inverse scattering, tomography and medical imaging, image restoration, regularization theory of linear and nonlinear ill-posed problems, numerical analysis of inverse problems and inversion algorithms, including software and implementation aspects, applications to physics and engineering. The conference is structured in a number of invited lectures and in a poster session devoted to contributions from young mathematicians and researchers. Conference Chair: * M. Bertero, Universita' di Genova, Italy Organizing committee: * M.Bertero, Universita' di Genova , Italy ( bertero@disi.unige.it ) * I. De Feis, Istituto per le Applicazioni della Matematica, CNR, Napoli, Italy * A. Murli, Universita' di Napoli "Federico II", Italy * R. Pierri, Universita' di Napoli II, Italy * S. Seatzu, Universita' di Cagliari, Italy * G. Talenti , Universita' di Firenze, Italy Scientific committe: * M.Bertero , Universita' di Genova , Italy * D. Colton, University of Delaware, Newark, USA * C. De Mol, Universite' Libre de Bruxelles, Belgium * H.W. Engl, Universitaet Linz, Austria * F.A. Grunbaum, University of California, Berkeley, USA * A.K. Louis, Universitaet des Saarlandes, Saarbrucken, Germany * F. Natterer, Universitaet Muenster, Germany * E.R. Pike, King's College , London, UK * P.C. Sabatier, Universite' de Montpellier II, France * S. Seatzu , Universita' di Cagliari, Italy * G. Talenti, Universita' di Firenze, Italy Invited speakers * G. Alessandrini, Universita' di Trieste, Italy * F. Bardati, Universita' di Roma 2, Italy * J.C. Brown, University of Glasgow, UK * S. Caorsi, Universita' di Genova, Italy * K. Chadan, Universite' d'Orsay, France * G. Chavent, Universite' Paris-Dauphine, France * J. Christou, Arizona University, USA * D. Colton, University of Delaware, Newark, USA * C. De Mol, Universite' Libre de Bruxelles, Belgium * H. Engl, Johannes-Kepler Universitaet ,Linz, Austria * A. R. Formiconi, Universita' di Firenze, Italy * M. Grasselli, Politecnico di Milano ,Italy * A. Grunbaum, University of California,Berkeley , USA * A. Kirsch, Universitaet Karlsruhe, Germany * R. Kress, Universitaet Goettingen, Germany * K. Langenberg, Universitaet Kassel, Germany * D. Lesselier, SUPELEC Gif-sur Yvette, France * A. Lorenzi, Universita' di Milano, Italy * A.K. Louis, Universitaet des Saarlandes , Saarbrucken, Germany * P. Maass, Universitaet Potsdam, Germany * A. Nachman, University of Rocherster, USA * Z. Nashed , University of Delaware, Newark, USA * F. Natterer, Universitaet Muenster, Germany * L. Paivarinta, University of Oulu, Finland * M.K. Pidcock, Oxford Brookes University , Oxford, UK * R. Pierri, Universita' di Napoli 2, Italy * E.R. Pike, King's College, London, UK * R. J. Plemmons, Wake Forest University , Wiston-Salem, USA * W. Rundell , Texas A&M University, College Station, USA * P.C. Sabatier, Universite' de Montpellier II, France * C. van der Mee, Universita' di Cagliari, Italy * J. Zou, The Chinese University of Hong Kong, Hong Kong Prof. R.E. Kleinman was invited to contribute to this conference and he enthousiastically accepted. His sudden death on February 23, 1998 is a heavy loss for the scintific community. More information about conference: http://www.disi.unige.it/person/BerteroM Mario Bertero phone : +39-10-3536733 Dipartimento di Informatica e fax : +39-10-313358 Scienze dell' Informazione fax : +39-10-311066 Universita' di Genova E-mail: bertero@disi.unige.it Via Dodecaneso 35 bertero@ge.infn.it I-16146 Genova, Italy URL : http://www.disi.unige.it ------------------------------ From: "Jennifer Mueller" Subject: Int'l. Workshop on Nonlinear & Improperly Posed Problems Date: Thu, 11 Jun 1998 The deadline has been extended to June 30, 1998 for abstracts and registration for the International Workshop on Nonlinear and Improperly Posed Problems August 15-13, 1998 International Hotel Sapanaca Kocaeli - Turkey For details please see the website http://web.turnet.net.tr/~kcluniv2/workshop ------------------------------ From: flores@siam.org Subject: Sixth SIAM Conference on Optimization Date: Fri, 05 Jun 98 Announcing... Sixth SIAM Conference on Optimization May 10-12, 1999 Radisson Atlanta Hotel Atlanta, Georgia Sponsored by SIAM Activity Group on Optimization Submissions for minisymposium proposals and contributed abstracts are welcome. For additional information about the conference, visit www.siam.org/meetings/op99/. ------------------------------ From: flores@siam.org Subject: Fifth SIAM Conference on Applications of Dynamical Systems Date: Mon, 22 Jun 98 Fifth SIAM Conference on Applications of Dynamical Systems May 24-28, 1999 Snowbird Ski and Summer Resort Snowbird, Utah SIAM and the Organizing Committee for the Fifth SIAM Conference on Applications of Dynamical Systems are pleased to announce that the conference Call for Papers is now available on the Web. To know more about the meeting themes, invited plenary speakers, minisymposia, deadlines for submission of minisymposium proposals and contributed abstracts, please visit www.siam.org/meetings/ds99/ Thank you. Trini Flores flores@siam.org meetings@siam.org ------------------------------ From: "Roger Haagmans" Subject: School on Wavelets in the Geosciences Date: Mon, 8 Jun 1998 SCHOOL ON WAVELETS IN THE GEOSCIENCES Supported by: International Association of Geodesy Netherlands Geodetic Commission Sub-Faculty of Geodetic Engineering DUT Delft Institute for Earth-Oriented Space Research FINAL ANNOUNCEMENT and REGISTRATION October, 4 - 9, 1998 At the Delft Institute for Earth-Oriented Space Research Faculty of Civil Engineering and Geosciences Delft University of Technology Thijsseweg 11 Delft, The Netherlands Latest information This text contain the latest information on the School on Wavelets in the Geosciences. The final team of lecturers consists of Willi Freeden, Matthias Holschneider and Wim Sweldens. More detailed information on the contents of the lectures as provided by the lecturers is available and registration information is extended. The first registrations show an interesting diversity in scientific disciplines among the participants: so don't hesitate to register but beware of the registration deadlines and the limited number of places. Objectives of the school The basic objective of the School is provide the necessary information to understand the potential and limitations of the application of wavelets in the geosciences. This includes: * the mathematical representation in one and more dimensions like on the sphere * the properties as compared to Fourier techniques * the signal representation and analysis ability * the use of operators in terms of wavelets * gaining experiences with wavelets using examples from geosciences in computer exercises Program The course will last for six days and contains three major subjects. Every subject will be covered in two days time. All topics will be supported by practical exercises on the computer with examples from geodynamics, topography representation, gravity field modelling etc. The lectures and subjects are: 1. Dr.Matthias Holschneider, Laboratoire de G=E9omagn=E9tisme, Institut de Physique du Globe de Paris, France; One dimensional wavelets. The link with Fourier theory is a starting point to introduce continuous wavelets, discrete wavelets on intervals, multiresolution, analysis and synthesis using wavelets, operators, compression and filtering with wavelets. 2. Dr. Wim Sweldens, Mathematical Sciences Research Centre, Lucent Technologies Bell Laboratories, Murray Hill, NJ, USA; Tensor product wavelets, 2nd generation wavelets. Special emphasis will be put on the choice of wavelets in multidimensions. Multiresolution analysis for arbitrary surfaces, efficient data representation as well as efficient procedures for evaluation of integrals or solving integral equations will be elaborated in more detail. 3. Prof. Dr. Willi Freeden, Geomathematics Group. Department of Mathematics, University of Kaiserslautern, Germany; Wavelets on closed surfaces. The link with Fourier theory on the sphere (spherical harmonics) is a starting point to introduce continuous wavelets, discrete wavelets, multiresolution, analysis and synthesis using wavelets, operators, compression and regularisation with wavelets. This will be generalised to closed surfaces. Who could attend The school aims to provide Ph.D. students, researchers and staff members with an overview on wavelet methods and its applications in geosciences at a post graduate level (master). The participants should have a University level education with an adequate mathematical foundation. Basic knowledge on potential theory, functional analysis, numerical analysis or systems and signals is recommended. The minimal number of attendants is 20 the maximum 40. The registration deadline is July 1st 1998; the fee Dfl. 450,-; After this deadline it is still possible to register and pay until August 15th, however, the registration fee will be increased to dfl. 650,- ! Organisation Scientific Committee * Prof. Dr. Willi Freeden, Geomathematics Group, Department of Mathematics, University of Kaiserslautern, Germany. * Prof. Dr. Roland Klees, Delft Institute for Earth-Oriented Space Research (DEOS), Faculty of Civil Engineering and Geosciences, Delft University of Technology, The Netherlands. More detailed information can be obtained from: WWW: http://www.geo.tudelft.nl/fmr/waveletschool.html or by e-mail: wavelet.school@geo.tudelft.nl or: Secretariat IAG School on Wavelets in the Geosciences c/o Wil Coops-Luijten DEOS, Faculty of Civil Engineering and Geosciences, Delft University of Technology Thijsseweg 11, NL-2629 JA Delft, The Netherlands Telephone: +31 15 2783289 Fax: +31 15 2783711 Roger Haagmans Delft Institute for Earth-Oriented Space Research (DEOS) Faculty of Civil Engineering and Geosciences Delft University of Technology E-mail: r.h.n.haagmans@geo.tudelft.nl Phone: (31) 15 2785234 Fax: (31) 15 2783711 WWW: http://www.geo.tudelft.nl/~fmr [This item has been edited for length. Please contact the above addresses for more information. -Ed. ] ------------------------------ From: BERTERO@ge.infn.it Subject: New book: Introduction to Inverse Problems in Imaging Date: Wed, 10 Jun 1998 The following book has just appeared: M Bertero, P Boccacci, University of Genova, Italy: Introduction to Inverse Problems in Imaging IOP Publishing, Bristol and Philadelphia. ISBN: 0 7503 0439 1 (hardcover),0 7503 0435 9 (paperback) Hardcover Price: 75.00 pounds/US$149.00 Paperback Price: 25.00 pounds/US$49.00 Pages: 351 This is a graduate textbook on the principles of linear inverse problems, methods of their approximate solution and practical application in imaging. The level of mathematical treatment is kept as low as possible to make the book suitable for a wide range of readers from different backgrounds in science and engineering. Mathematical prerequisites are first courses in analysis, geometry, linear algebra, probability theory and Fourier analysis. The authors concentrate on presenting easily implementable and fast solution algorithms. The book will provide the reader with the appropriate background for a clear understanding of the essence of inverse problems (ill-posedness and its cure) and, consequently, for an intelligent assessment of the rapidly growing literature on these problems. More information: http://www.iop.org/Books/Catalogue/050/__2/0750304391 Mario Bertero phone : +39-10-3536733 Dipartimento di Informatica e fax : +39-10-313358 Scienze dell' Informazione fax : +39-10-311066 Universita' di Genova E-mail: bertero@disi.unige.it Via Dodecaneso 35 bertero@ge.infn.it I-16146 Genova, Italy URL : http://www.disi.unige.it ------------------------------ From: "Prof. Alexander G.Ramm" Subject: New books Date: Tue, 26 May 1998 The following books edited by A.G.RAMM: 1. Spectral and scattering theory, Plenum Publishers, New York, 1998 (editor A.G.Ramm). isbn 0-306-45829-2 2. Inverse problems, tomography and image processing, Plenum Publishers, New York, 1998 (editor A.G.Ramm). isbn 0-306-45828-4 have appeared. They contain papers on inverse problems presented at the First ISAAC congress (June 1997). These papers treat a broad range of inverse problems. Sincerely yours, Alexander Ramm ------------------------------ From: Janet Thomas Subject: Contents list for Inverse Problems vol 14, no 3 Date: Tue, 26 May 1998 Inverse Problems June 1998 Volume 14, Issue 3 Table of Contents SPECIAL SECTION ON INVERSE PROBLEMS IN GEOPHYSICS: CLOSING THE GAP BETWEEN THEORY AND PRACTICE Guest Editors' introduction R Snieder, M Sambridge and F Sans\'o Global seismic tomography: the inverse problem and beyond J Trampert The role of nonlinearity in inverse problems R Snieder Resolution analysis of general inverse problems through inverse Monte Carlo sampling K Mosegaard Exploring multidimensional landscapes without a map M Sambridge The inverse problem for mantle viscosity W R Peltier Inverse thermal history modelling as a hydrocarbon exploration tool K Gallagher The integrated inverse gravimetric--tomographic problem: a continuous approach R Barzaghi and F Sans\'o PAPERS Cross-borehole inverse scattering using a boundary finite-element method S Bonnard, P Vincent and M Saillard Structural identification of an unknown source term in a heat equation J R Cannon and P DuChateau Identification of conductivity imperfections of small diameter by boundary measurements. Continuous dependence and computational reconstruction D J Cedio-Fengya, S Moskow and M S Vogelius The simple method for solving the electromagnetic inverse scattering problem: the case of TE polarized waves D Colton and M Piana The general quadratic Radon transform K Denecker, J Van Overloop and F Sommen Tomographic reconstruction from arbitrary directions using ridge functions I G Kazantsev On the $\Lambda$-operators associated with two Sturm--Liouville problems on the semi-axis E Kh Khristov On the design of reflectors with prespecified distribution of virtual sources and intensities S A Kochengin, V I Oliker and O von Tempski Uniqueness for a wave propagation inverse problem in a half-space M Lassas, M Cheney and G Uhlmann Reconstruction of a two-dimensional binary obstacle by controlled evolution of a level-set A Litman, D Lesselier and F Santosa Three-dimensional inversion of eddy current data for non-destructive evaluation of steam generator tubes V Monebhurrun, B Duch\^ene and D Lesselier A uniqueness result for the recovery of the optical parameters of a dispersive and absorbing thin film K V Popov On the relation between singularities of coefficients and singularities of reflected waves in the Lam\'e system J-N Wang The fermionic approach to Darboux transformations R Willox, T Tokihiro, I Loris and J Satsuma Discrete Gel'fand--Levitan and Marchenko matrix equations and layer stripping algorithms for the discrete two-dimensional Schr\"odinger equation inverse scattering problem with a nonlocal potential A E Yagle ADDENDUM Reconstructing the potential function and its derivatives using nodal data C K Law and C-F Yang INVERSE PROBLEMS NEWSLETTER Why not visit the Inverse Problems home page at http://www.iop.org/Journals/ip? Submitted by Janet Thomas, Production Editor Institute of Physics Publishing Dirac House, Temple Back, Bristol BS1 6BE, UK Tel: +44 (0)117 930 1081 Fax: +44 (0)117 929 4318 E-mail: janet.thomas@ioppublishing.co.uk WWW: http://www.iop.org ------------------------------ From: Hans Schneider Subject: Contents of LAA Volume 277/1-3 Date: Sun, 7 Jun 1998 Linear Algebra and Its Applications June 1998 Volume 277/1-3 Table of Contents Convergence of inhomogeneous products of matrices and coefficients of ergodicity UG Rothblum, J Hartfiel Completely positive matrices with a book-graph F Barioli Local inversion of matrices with sparse inverses CR Johnson, M Lundquist On the matrix equation A^l+A^l+k=J_n Y Wu, Q Li Falsity of wang's conjecture on stars CS Karuppan Chetty Matrix characterization of MDS linear codes over modules XD Dong, CB Soh A balanced canonical form for discrete-time minimal systems using characteristic maps J Hoffmann Matrices of zeros and ones with the maximum jump number BO Cheng On lie gradings II M Havlicek, M Havlicek An index theorem for the product of linear relations RW Cross A note on the hyperbolic singular value decomposition BC Levy The image of the adjoint mapping DW Robinson Primes in several classes of the positive matrices G Picci, JH Van Schuppen Eigenvalue location for nonnegative and Z-matrices SM Fallat The truncated hamburger matrix moment problems in the nondegenerate and degenerate cases, and matrix continued fractions GN Chen On a determinant result of I. Olkin M Marcus Matrix sandwich problems MC Golumbic On the number of invariant polynomails of the product of matrices with prescribed similarity classes YL Zhang Multimatriods IV. Chain-group representions A Bouchet Norms of sampling operators P Zizler Reverse order law for reflexive generalized inverses of products of matrices AR De Pierro, Musheng Wei Time-varying discrete Riccati equation in terms of Ben Artzi - Gohberg dichotomy V Ionescu On matrices satisfying a maximum principle with respect to a cone MR Weber Review of"Nonnegative Matrices and Applications" by R.B. Bapat and T.E.S. Raghavan S Kirkland Submitted by Hans Schneider hans@math.wisc.edu. ------- end -------