IPNet Digest Volume 6, Number 03 April 1, 1999 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: Seminar: Inverse Problems Seminar of the Pacific Northwest Course: Computational Math. Driven by Industrial Applications Conference: Differential Equations & Computational Simulations Ph.D. Student Position: Research in Inverse Problems Postdoctoral Position: Computational Physics & Signal Processing Postdoctoral Position: Electrical Impedance Tomography New book: Regularization of First-Kind Volterra Equations Table of Contents: Journal of Inverse and Ill-Posed Problems Table of Contents: Inverse Problems Table of Contents: Surveys on Mathematics for Industry 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: Gunther Uhlmann Subject: Inverse Problems Seminar of the Pacific NW Date: Fri, 26 Mar 1999 First Announcement INVERSE PROBLEMS SEMINAR OF THE PACIFIC NORTHWEST 1999 Meeting University of Washington Seattle, WA Saturday and Sunday, May 15-16, 1999 Schedule: Saturday, May 15 11:00 Coffee 11:30 William Symes (Rice University) (TBA) 12:30 Lunch 2:30 Matti Lassas (Rolf Nevanlinna Institute, Finland) "On determining a Riemannian manifold from the set of Cauchy data of harmonic functions" 4:00 Liliana Borcea (Rice University) "An asymptotic study of the Neumann to Dirichlet map in impedance tomography" 5:15 Contributed talks Sunday, May 16 9:00 Coffee 9:30 Cliff Nolan (UW) "High-Frequency linearized inversion in anisotropic models of the earth" 11:00 Lassi Paivarinta (University of Oulu, Finland) "On recovering singularities from back-scattering data" Abstracts are available at the IPSPN Web site http://www.math.washington.edu/~chappa/IPSPN/ Times and locations will be announced shortly. There will be a dinner for participants on Saturday evening. This conference is free to all participants, and advance registration is not necessary. Limited travel support is available for participants in this meeting. Please contact Gunther Uhlmann (gunther@math.washington.edu) if you need travel support. For general information about the IPSPN, visit the IPSPN web site: http://www.math.washington.edu/~chappa/IPSPN/ It contains up-to-date information about this meeting, information about hotels and transportation in Seattle To request disability accommodations, contact the Office of Disability Services ten days in advance of the event: 206-543-6450 (voice); 206-543-6452 (TDD); 206-685-3885 (FAX); access@u.washington.edu (E-mail). If you still have questions, or would like to be added to or removed from the IPSPN mailing list, contact Gunther Uhlmann (gunther@math.washington.edu) (206-543-1946). ------------------------------ From: "PROF.HEINZ W. ENGL" Subject: CIME Course Date: Fri, 26 Mar 1999 A Course on "Computational Mathematics driven by Industrial Applications" will be held by CIME (International Mathematical Summer Center) in Martina Franca (Apulia, Italy) during June 21-27, 1999. The Directors of the Course are Vincenzo Capasso (Univ. of Milano), Heinz W. Engl (Univ. of Linz), and Jacques Periaux (Dassault Aviation). COURSES The following sets of 5/6 hours lectures each in English will be offered 1. Paths, trees and flows: graph optimization problems with industrial applications by Prof. Rainer BURKARD (Technische Universitaet Graz) 2. New computational concepts, adaptive differential equation solvers and virtual labs, by Prof. Peter DEUFLHARD (Konrad Zuse Zentrum Berlin) 3. Computational methods for aerodynamic analysis and design, by Prof. Antony JAMESON (Stanford University) 4. Mathematical problems in industry by Jacques Louis LIONS (College de France et Dassault Aviation, Paris) 5. Wavelets transform and cosine transform in signal and image processing by Gilbert STRANG (MIT) SEMINARS A set of two hours seminars in English will be offered too a. Mathematics of the crystallization process of polymers by Vincenzo CAPASSO b. Inverse problems: regularization methods and applications in industry by Heinz ENGL c. Mathematics of Glass by Robert MATTHEIJ ( Technische Universitaet Eindhoven) d. Combining game theory and genetic algorithms for solving multiobjective shape optimization problems in aerodynamics Engineering by Jacques PERIAUX Infos and Apllications for Participation: http://www.math.unifi.it/cime/ Deadline for applications: April 30, 1999. NO FEES are due. An important consideration in the acceptance of the application is the scientific relevance of the course to the field of interest of the applicant. Applicants are requested therefore to submit along with their application, a scientific curriculum and a letter of recommendation. There is a chance of having your expenses partially covered by the European Union if you are up to 35 years old and area citizen of a member state of the EU or reside in such a state for at least one year. Please quote in the application the need of support and conditions for eligibility. SITE Martina Franca is a delightful baroque town made of white houses of Apulian spontaneous architecture. It is the major and aristocratic centre of the "Murgia dei Trulli" standing on a hill which dominates the well known Itria Valley , which is spotted with "trulli" typical dry stone houses of conical shape which go back to the 15th century. A masterpiece of the baroque architecture is the ducal palace where the Course will be hosted. Martina Franca belongs to the province of Taranto, one of the major centres of Magna Grecia, particularly devoted to Mathematics. Taranto houses an outstanding museum of Magna Grecia with fabulous collections of gold manufactures. LODGING Special rates are offered by Park Hotel San Michele (four star hotel): Lit. 70.000 full board for accommodation in double room Lit 100.000 full board for accommodation in single room Participants are requested to made their reservations directly at the hotel (CIME may reimburse selected participants - see above) tel +39 0804807053 fax +39 0804808895 Prof.Dr.Heinz W. Engl E-Mail: engl@indmath.uni-linz.ac.at Institut fuer Industriemathematik secretary:nikolaus@indmath.uni-linz.ac.at Johannes-Kepler-Universitaet Phone:+43-(0)732-2468...,ext.9219 or 693, Altenbergerstrasse 69 secretary: ext.9220; as Dean: ext.3220 A-4040 Linz Fax:ext. 855, in Dean's affairs:ext.3225 Oesterreich / Austria home phone: +43-(0)732-245518 World Wide Web: http://www.indmath.uni-linz.ac.at/ ------------------------------ From: Jennifer Collins Subject: 4th Mississippi State Conference on DE & CS Date: Mon, 22 Mar 1999 Fourth Mississippi State Conference on Differential Equations & Computational Simulations REMINDER ---- Abstracts Deadline March 31, 1999. NOTE ---- NSF Proposal for Travel Support for Graduate Students/ Recent Ph.D.s has been recommended for funding -- details on how to apply etc will be posted on the conference web page very soon. Application Deadline: April 16, 1999. Contact person: J.Zhu (jzhu@math.msstate.edu). Second Announcement and Call for Papers MAY 21-22, 1999 Mississippi State University Organized by: Department of Mathematics and Statistics and NSF Engineering Research Center Co-Sponsor: Electronic Journal of Differential Equations Principal Speakers: Lawrence C. Evans, University of California, Berkley Charbel Farhat, University of Colorado, Boulder Irene Fonseca, Carnegie Mellon University Ahmed Noor, University of Virginia James Serrin, University of Minnesota Paul Waltman, Emory University Mary Wheeler, University of Texas, Austin This interdisciplinary conference will provide a joint forum where mathematicians, scientists, and engineers from academia and industry can exchange research ideas involving theoretical and applied developments in differential equations and computational simulations. In addition to the seven principal lectures, there will be sessions of contributed talks. This conference is held bi-annually. Reviewed manuscripts will be published as a special issue of the Electronic Journal of Differential Equations. Abstracts for contributed papers should be submitted **************************** no later than March 31, 1999 **************************** and should be done on-line at the conference web. In the event that it is not possible to do it through the web, contact Dr. Jianping Zhu (Program Chair) at jzhu@math.msstate.edu. For further information on the conference organization, program, and Travel/Registration Funding Possibilities for Graduate Students & Recent Ph.D.s via a National Science Foundation Grant visit the conference webpage at http://www.msstate.edu/Dept/Math/conf.html. Conference organizers: Ratnasingham Shivaji Bharat Soni Department of Mathematics & Statistics NSF Engineering Research Center Mississippi State, MS 39762, USA. Mississippi State, MS 39762, USA. shivaji@math.msstate.edu bsoni@erc.msstate.edu Phone:601-325-3414/7142 Phone:601-325-8278 Fax:601-325-0005 Fax:601-325-7692 ------------------------------ From: Otmar Scherzer Subject: Ph.D. Student Position in "Inverse Problems" Date: Mon, 8 Mar 1999 Ph.D. Student Position in "Inverse Problems" The ``Spezialforschungsbereich'' SFB F013 ''Numerical and Symbolic Scientific Computing'' offers a Ph.D. student position for research in ``Estimation of Discontinuous Parameters in Differential Equations'' funded by the ``Austrian Research Fund'' FWF from July 1999 to March 2001. The successful candidate will be responsible for research in Parameter Estimation and should have experience in either one of the following mathematical fields: Inverse Problems, Wavelets, and Image Processing. From a successful candidate we expect the ability to work in an interdisciplinary research environment. The research activities will be part of the work of the SFB which is concerned with the development of new numerical, symbolic and coupled methods for the solution of field problem arising in mechanics, electromagnetics, inverse problems and image processing. The methods are implemented in innovative software packages. Interested candidates are invited to send a CV to A. Univ.-Prof. Dr. O. Scherzer Johannes Kepler University Linz Institut fuer Industriemathematik Altenbergerstr. 69 A--4040 Linz Austria E-mail: scherzer@indmath.uni-linz.ac.at Fax ++43-732-2468--855 Otmar Scherzer Institut fuer Mathematik Johannes-Kepler-Universitaet A-4040 Linz Oesterreich / Austria E-Mail: scherzer@indmath.uni-linz.ac.at Phone: +43-(0)732-2468-9221 Fax: +43-(0)732-2468-855, attn.: Otmar Scherzer Telex: 2-2323 uni li a ------------------------------ From: "Eric L. Miller" Subject: Submission for IP Net Date: Thu, 4 Mar 1999 Post-Doctoral Research Position Available at Northeastern University, Boston MA in Computational Physics and Signal Processing. Description: As part of a contract from the US Department of Energy aimed at the development of physics based signal and image processing methods for environmental remediation, a post-doctoral research position is available at Northeastern University in Boston, MA combining elements of computational physics and signal/image processing. In particular, we are interested in characterizing and tracking the structure over time of contaminant plumes based on cross-well, bore-hole radar data. The initial phase of the work will be directed toward the refinement of an existing 3D vector electromagnetic scattering code used to describe the propagation of energy through the earth, the interaction of the energy with the plumes, and the process of measuring the resulting scattered fields. The second portion of the research will center on the development of data inversion algorithms based on these models. We are currently considering a variety of methods for approaching these problems including 1. A traditional inverse scattering formulation in which a full 3D reconstruction of the electrical properties of the medium is produced. Essentially this approach requires the solution of a high dimensional non-linear inverse problem. 2. Methods based on array or match field processing techniques for which the processing objective is the determination of the location of an object of partially known shape and composition. 3. Active contour/active surface techniques which are specifically tailored to the determination of the shape of an unknown perturbation in the medium. Implementation of these methods in a recursive, Kalman filtering-type framework to perform plume tracking is also of interest. Requirements: A Ph.D. and strong analytical skills in a field relevant to the above described work (eg. Electrical Engineering, Mathematics, Physics, etc.) with experience in at least a subset of the following areas: 1. Signal or image processing with emphasis on restoration methods, 2. Computational electromagnetics, 3. Numerical analysis 4. Inverse scattering. The candidate will be expected to carry out research in an independent manner and if interested aid in the supervision of Master's and Doctoral level graduate students. Strong oral and written English skills are a must. Funding is available for up to 1 year and we are looking for someone to start as soon as possible. All interested applicants are invited to contact Prof. Eric Miller 235 Forsyth Building Northeastern University Boston, MA 02115 Tel: 617-373-8386 Email: elmiller@ece.neu.edu Web http://claudius.cdsp.neu.edu/elmhome for more information or to submit an application (CV, references, and a reprint of a published journal article). ------------------------------ From: Jari Kaipio Subject: A post doc position in EIT/process tomography Date: Wed, 10 Mar 1999 An open post-Doc position The position is filled in the Department of Applied Physics, University of Kuopio (DAP) in a research group whose main interests are in the theory and applications of inverse problems and time series analysis. The field of research is electrical impedance/process tomography. The computational approach/setting includes - 3D finite element models for EIT - Statistical inversion/nonstandard prior models - Dynamical inversion methods: optimal estimation theory - Stochastic flow (e.g. Navier-Stokes) models There are two senior researchers and seven graduate students who are involved in this project at DAP. Relevant research material can be found in http://venda.uku.fi/research.areas/bmipg.html. The research is carried out in collaboration with The Department of Mathematics, Helsinki Univesity of Technology (prof. Erkki Somersalo) and The Department of Mathematics, UMIST, Manchester (Dr. William Lionheart). The candidates are expected to be competent in applied mathematics, computational modelling and programming. The software platform is mainly Matlab but experience in C++ is also considered to be an asset. The primary task of the candidates is stochastic flow modelling. The position is open immediately and will last at least until September 31, 2001. There is no dead line for the position. For further information contact prof. Jari Kaipio (kaipio@venda.uku.fi) or prof. Erkki Somersalo (esomersa@dopey.hut.fi). Submitted by: Jari Kaipio, Ph.D., Professor Department of Applied Physics University of Kuopio P.O.Box 1627 70211 Kuopio FINLAND phone: +358-17-162557 fax: +358-17-162585 email: kaipio@venda.uku.fi ------------------------------ From: VSP - Els van Egmond Subject: New titles in 'Inverse and Ill-Posed Problems Series' Date: Wed, 10 Mar 1999 Recently published in the "Inverse and Ill-Posed Problems Series": Small Parameter Method in Multidimensional Inverse Problems A.S. Barashkov 1998; iv + 140 pages ISBN 90-6764-295-9 DEM 150/USD 95/GBP 59 Regularization, Uniqueness and Existence of Solutions of Volterra Equations of the First Kind A.Asanov 1998; vi+276 pages ISBN 90-6764-287-8 DEM 238/USD 150/GBP 94 Tables of contents of above books and information on other books in this book series can be found on http://www.vsppub.com/books/bs3.html VSP - Int.'l. Science Publishers P.O. Box 346 3700 AH Zeist Netherlands Fax: +31 30 693 2081 E-mail: vsppub@compuserve.com http://www.vsppub.com ------------------------------ From: VSP - Els van Egmond Subject: Table of Contents, Journal of Inverse and Ill-Posed Problems Date: Wed, 10 Mar 1999 Journal of Inverse and Ill-Posed Problems 1999 Vol. 7, No. 1 Table of Contents On solving equations of the first kind nonlinear on a parameter in classes of discontinuous functions A.L. Ageev and T.V. Antonova Integro-differential indicator of nonhomogeneity in tomography problem D.S. Anikonov Determining the structure of a biological medium using acousto-optic probes H.T. Banks and T. Lin Numerical solutionof the emission 2D-tomography problem for a medium with absorption and refraction E.Yu. Derevtsov, A.G. Kleshchev and V.A. Sharafutdinov Journal of Inverse and Ill-Posed Problems 1999 Vol. 7, No. 2 Table of Contents Two inverse problems for a system of quantum kinetic equations V.G. Bardakov Determination of the rational function poles V.G. Cherednichenko The collocational double series inverse in quasi-linear regularizer form N.H.S. Haidar On convergence rates of some iterative regularization methods for an inverse problem for a nonlinear parabolic equation connected with continuous casting of steel B. Kaltenbacher Recovering discrete and continuous parts of the solution of linear ill-posed problems by Tikhonov regularization A. Seidel and H.W. Engl A generalized projection scheme for solving ill-posed problems S.G. Solodky More information on this journal, such as contents of previous issues, instructions to authors, can be found on: http://www.vsppub.com/journals/jn-JouInvIllPro.html VSP - Int.'l. Science Publishers P.O. Box 346 3700 AH Zeist Netherlands Fax: +31 30 693 2081 E-mail: vsppub@compuserve.com http://www.vsppub.com ------------------------------ From: "Janet Thomas" Subject: Contents list for Inverse Problems Date: Tue, 30 Mar 1999 Inverse Problems April 1999 Vol 15, Issue 2 Table of Contents NOTE FROM THE EDITORIAL BOARD LETTER TO THE EDITOR A symmetry test for quasilinear coupled systems V V Sokolov and T Wolf TOPICAL REVIEWS The pragmatics of solving industrial (real-world) inverse problems with exemplification based on the molecular weight distribution problem R S Anderssen Optical tomography in medical imaging S R Arridge PAPERS Restoration of chopped and nodded images in infrared astronomy M Bertero, P Boccacci, F Di Benedetto and M Robberto Imaging the diffusion coefficient in a parabolic inverse problem in optical tomography Y A Gryazin, M V Klibanov and T R Lucas Tomographic reconstruction from non-calibrated noisy projections in non-destructive evaluation B Chalmond, F Coldefy and B Lavayssi\`ere Factorization of the far-field operator for the inhomogeneous medium case and an application in inverse scattering theory A Kirsch Reconstruction of nonlinear material properties for homogeneous, isotropic slabs using electromagnetic waves D Sj\"oberg Maximum entropy method for sign-altering functions A Balandin and A Kaneko Recovery of small perturbations of an interface for an elliptic inverse problem via linearization C F Tolmasky and A Wiegmann A unified approach to regularization methods for linear ill-posed problems A K Louis Inverse scattering problem for a stratified anisotropic slab D Sheen and D Shepelsky A multiscattering series for impedance tomography in layered media L Borcea and M Ortiz Synthesis of perfectly conducting gratings with an arbitrary profile of slits Y K Sirenko, L G Velychko and E Karacuha Time domain inversion of a viscoelastically restrained Timoshenko beam P D Folkow Projections onto the range of the exponential Radon transform and reconstruction algorithms E Clarkson Probabilistic analysis of implicit inverse problems K Mosegaard and C Rygaard-Hjalsted A new formula for restoration of telegraphic waveform S K Foong and S Kanno Monitoring underground flows with electromagnetic methods D C Dobson and P G Kaup Positive solutions to linear inverse problems G D de Villiers, B McNally and E R Pike Reconstruction of a source domain from the Cauchy data M Ikehata 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: "PROF.HEINZ W. ENGL" Subject: Contents for Surveys on Mathematics for Industry Date: Fri, 19 Mar 1999 Surveys on Mathematics for Industry 1999 Vol.8, 2 Table of Contents M.Guenther, U. Feldmann: CAD-based electric-circuit modeling in industry: Part 1: Mathematical structure and index of network equations: Part 2: Impact of circuit configurations and parameter: Heinz W. Engl, Linz, Austria Editor-in-Chief Prof.Dr.Heinz W. Engl E-Mail: engl@indmath.uni-linz.ac.at Institut fuer Industriemathematik secretary:nikolaus@indmath.uni-linz.ac.at Johannes-Kepler-Universitaet Phone:+43-(0)732-2468...,ext.9219 or 693, Altenbergerstrasse 69 secretary: ext.9220; as Dean: ext.3220 A-4040 Linz Fax:ext. 855, in Dean's affairs:ext.3225 Oesterreich / Austria home phone: +43-(0)732-245518 World Wide Web: http://www.indmath.uni-linz.ac.at/ ------------------------------ From: Hans Schneider Subject: Contents, LAA 291 Date: Wed, 24 Mar 1999 Linear Algebra and Its Applications April 1999 Vol. 291, Issues 1-3 Table of Contents A simple approach to matrix realizations for Littlewood-Richardson sequences GD Appleby Gershgorin's theorem for matrices of operators HN Salas The contragredient equivalence for several matrices: a set of invariants J Gelonch Products of commutators of dilatations H You Decomposability and structure of nonnegative bands in m_n(r) A Marwaha An alternative system of structural invariants of quadruples of matrices I Garcia-Planas Inequalities for c-s seminorms and lieb functions RA Horn Multiplicities of eigenvalues of some linear search schemes AJ Pryde Triangular powers of integers from determinants of bionomial coefficient matrices LJ Ratliff, DE Rush Some lowner partial orders of schur complements and kronecker products of matrices J Liu Perron vector ordering for a subclass of tournament matrices S Kirkland On simultaneous similarity of matrices and related questions JA Dias Da Silva Inverse updating and downdating for weighted linear least squares using M-invariant reflections J Zhao Extreme rays for cones of hermitian matrix functions that are non-negative on the positive semi-definite matrices TH Pate Linear algebra and its applications multivariate versions of cochran theorems CS Wong Not all GKK tau-matrices are stable O Holtz Maximal abelian subalgebras of e(p,q) algebras Z Thomova ContentsDirect from Elsevier Science URL: http://www.elsevier.nl/locate/jnlnr/07738 Submitted by: Hans Schneider hans@math.wisc.edu. Department of Mathematics 608-262-1402 (Work) Van Vleck Hall 608-271-7252 (Home) 480 Lincoln Drive 608-263-8891 (Work FAX) University of Wisconsin-Madison 608-271-8477 (Home FAX) Madison WI 53706 USA http://www.math.wisc.edu/~hans (URL) ------- end -------