IPNet Digest Volume 8, Number 06 August 25, 2001 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: Conference on Inverse Problems: Modeling and Simulation NSF-CBMS Regional Conference on Inverse Problems SIAM Conferences: Imaging Science and Life Sciences SIAM Conference on Optimization SIAM Conference on Geometric Design & Computing ECMI Research Fellowships 2001 Abstract: Regularized numerical inversion of Laplace transform Special Issue on Electrical Impedance Imaging 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: http://www.mth.msu.edu/ipnet Mail to ipnet-request@math.msu.edu ----------------------------- From: Fadil Santosa Subject: Conference on Inverse Problems: Modeling and Simulation Date: Wed, 15 Aug 2001 The First International Conference Inverse Problems: Modeling and Simulation July 14-21, 2002, Fethiye, Turkey The International Conference Inverse Problems: Modeling and Simulation will be held during July 14-21, 2002, in the historic city of Fethiye on the Mediterranean Sea, in Turkey. The main aim of the Conference is to promote unity through diversity and to encourage worldwide interest in the theory and applications of inverse problems. Our forum is going to bring together about 300 leading scientists from many different countries and many speciality applications. The proposed International Conference will be under the auspices of such international journals as Inverse Problems, Inverse Problems in Engineering, Inverse and Ill-Posed Problems, and Computational Methods in Applied Mathematics. The Conference will be very wide and attract leading American, Asian, and European scientists. Please see webpage: http://www.ccr.jussieu.fr/tarantola/Files/Professional/Fethiye/ for further information. Submitted by Fadil Santosa, University of Minnesota. ----------------------------- From: "R. Knobel" Subject: NSF-CBMS Conference on Inverse Problems Date: Fri, 10 Aug 2001 FIRST ANNOUNCEMENT NSF-CBMS Regional Conference on Using Spectral Data to Solve Inverse Problems December 14-18, 2001 The University of Texas - Pan American Edinburg, Texas USA http://www.math.panam.edu/cbms PRINCIPAL LECTURE SERIES Professor Joyce McLaughlin, Ford Foundation Professor of Mathematics at Rensselaer Polytechnic Institute, will provide 10 one-hour lectures on "Using Spectral Data to Solve Inverse Problems." These lectures will be a self-contained and comprehensive exposition on the use of natural frequencies and selected mode shape measurements to determine material properties of objects. These lectures will not only present the newest methods for solving these problems, but also give both mathematical and experimental insight into how the data depends on the material properties to be recovered. Emphasis will be on two-dimensional problems, with a brief introduction and insight given for one-dimensional problems. ADDITIONAL LECTURES Five additional invited speakers will provide supplemental lectures addressing related inverse problems in mathematics, science, and engineering. LOCATION The University of Texas-Pan American is located in Edinburg, Texas, in the subtropical Rio Grande Valley of South Texas. UTPA is just 20 minutes from Mexico, and approximately 75 miles from the Gulf of Mexico and the resort area of South Padre Island. The area is heavily influenced, both culturally and economically, by its proximity to the U.S.-Mexico border. REGISTRATION Participants may register by web at http://www.math.panam.edu/cbms, or by mail, e-mail, or fax using the contact information given below. There is no registration fee. TRAVEL SUPPORT The National Science Foundation is providing some support for domestic travel and local expenses. Requests may be sent to the contact information given below and should include rank/position, institution, a brief description of research interests, and the anticipated amount of support needed. Inclusion of a short statement from the advisors of those graduate students seeking funding is recommended. Requests for support are now being accepted, but should be made no later than Oct. 30. Late applicants will be considered as space and funds permit. TRANSPORTATION Edinburg is located approximately 230 miles southeast of San Antonio on US Route 281 and 150 miles southwest of Corpus Christi. The McAllen International Airport is approximately 15 miles south of Edinburg and is serviced by regularly scheduled flights from Houston (Continental) and Dallas (American). Car rentals, taxis, and shuttles to selected hotels are available from the airport. The Rio Grande Valley International Airport is located in Harlingen 40 miles east of Edinburg and is serviced by Continental, American, Southwest, and Sun Country Airlines. LOCAL ACCOMODATIONS Information on nearby lodging and restaurants will be made available on the conference web site http://www.math.panam.edu/cbms. CONTACT INFORMATION For more information about the conference, to register, or to request travel support, contact Submitted by: Roger Knobel Department of Mathematics The University of Texas - Pan American Edinburg, TX 78539-2999 Phone: (956) 381-3452 Fax: (956) 384-5091 E-mail: knobel@panam.edu ----------------------------- From: ross@siam.org Subject: SIAM IS01/LS01 conferences registration open Date: Thu, 02 Aug 2001 Register Now! The SIAM Conferences on Imaging Science (IS01) and Conference on the Life Sciences (LS01) are still taking preregistrations at: http://www.siam.org/meetings/is01/ and http://www.siam.org/meetings/ls01/ Deadline for Preregistration is August 10, 2001 The Imaging Science conference will be held from September 22-24, 2001 and the Life Sciences conference will be held from September 24-26, 2001. Both conferences will take place at the Boston Park Plaza Hotel, Boston, MA. For other SIAM Conferences, please visit: http://www.siam.org/meetings/calender.htm Darrell Ross SIAM, Conference Program Manager ----------------------------- From: ross@siam.org Subject: SIAM Conference on Optimization Date: Tue, 07 Aug 2001 14:57:15 -0400 Conference Name: SIAM Conference on Optimization Location: Westin Harbour Castle Hotel, Toronto, Canada Dates: May 20-22, 2002 The Call for Presentations for this conference is now available at: http://www.siam.org/meetings/op02/ For additional information, contact SIAM Conference Department at siam@meetings.org ----------------------------- From: cyoung@siam.org Subject: SIAM Conference on Geometric Design & Computing Date: Mon, 23 Jul 2001 Conference Name: SIAM Conference on Geometric Design and Computing Location: Sacramento, CA, USA Holiday Inn Capital Plaza Hotel Dates: November 5-8, 2001 Program, hotel and registration information is now available at: http://www.siam.org/meetings/gd01/ Key Deadlines: Speaker AV Requirements: 10/10/01 Hotel Reservations: 10/10/01 Pre-registration: 10/10/01 For additional information, contact SIAM Conference Department at meetings@siam.org ----------------------------- From: "Prof. Heinz W. Engl" Subject: ECMI RESEARCH FELLOWSHIPS 2001 Date: Thu, 9 Aug 2001 ECMI RESEARCH FELLOWSHIPS 2001 TMR Network: Differential Equations in Industry and Commerce Vacancies are available for both postdoctoral and predoctoral postgraduate researchers to work in the EC network 'Differential Equations in Industry and Commerce'. This network, which is part of the 'Training and Mobility in Research' (TMR) scheme, is organized by the European Consortium for Mathematics in Industry (ECMI) and details can be found on www.maths.ox.ac.uk/ociam /TMR/. The Research Fellows appointed to this network will work on industrially motivated problems involving differential equations. They will receive training in mathematical and computational techniques and will also spend time collaborating directly with industry. They will be encouraged to collaborate with researchers in the other centres of the network and to attend relevant conferences within Europe particularly those organized by MACSInet (www.macsinet.org/). The Research Fellowships are open to Nationals of a Member State or Associated State* of the European Union who have the equivalent of at least a masters degree in a mathematical science and will be under the age of 35 at the time of appointment. The fellowships may NOT be held in the country of which the fellow has nationality. Salary is in local currency on the appropriate local scale and social security, working facilities and travel allowances will be the responsibility of the host centre, following EC guidelines and approval by the network. One year positions are available at Eindhoven, Linz, Kaisterslautern, Strathclyde. Short-term positions may also be available at Oxford and Milan. DEADLINE FOR APPLICATIONS: AUG 30TH 2001 To apply, send your CV and a brief statement indicating any relevant industrial experience to Dr Hilary Ockendon, quoting reference BK/01/014. Centre for Industrial and Applied Mathematics Mathematical Institute 24-29 St Giles Oxford OX1 3LB fax: 01865 270515 email: ockendon@maths.ox.ac.uk *The Associated States eligible on this contract are Iceland, Liechtenstein, Norway, and Israel. Submitted by: 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 8693, Altenbergerstrasse 69 secretary: ext.9220 A-4040 Linz Fax:ext. 8855 Oesterreich / Austria home phone: +43-(0)732-245518 World Wide Web: http://www.indmath.uni-linz.ac.at/ ----------------------------- From: Vladimir Kryzhniy Subject: Regularized algorithm of numerical inversion of Laplace transform Date: 27 Jul 2001 Dear IPNet, I am sending attached information which I hope may be interested. Regards, Vladimir Kryzhniy e-mail: kryzhniy@usa.net Home phone: 763-537-7274 Regularized Algorithm of Numerical Inversion of Laplace Transform Vladimir Kryzhniy It is well known that numerical algorithm of Laplace Inversion has to be a regularized algorithm, based on Tikhonov's regularization. As a result of research regularized solution of Laplace Transform Inversion was found. It can be written as a convolution integral. This received formula is valid if Laplace Transform satisfies some conditions, which are not too strong, because we always can use properties of Laplace Transform. The criterion of regularization parameter search was adapted to Laplace Inversion. This criterion can also be used for error estimation. The output accuracy is definitely enough for algorithm's implementation in the engineer problem solving. Any output accuracy can be reached by using corresponding input accuracy. The program works really fast; one output function value is calculated in seconds. This algorithm could be taken as a start point for finding exponential signal expansion into partial fraction. Such problems are characteristic for many Physical systems relaxing from exited into a normal state, in particular for systems exited with the help of Nuclear Magnetic Resonance. Similar problems arise in Optics and a lot of other fields. I have some additional ideas about Laplace Transform Numerical Inversion algorithm usage in exponential signal expansion into partial fraction. If you have either questions or suggestion please let me know via e-mail: kryzhniy@usa.net ----------------------------- From: Jennifer Mueller Subject: Special Issue on Electrical Impedance Imaging Date: Mon, 6 Aug 2001 We would like to call to your attention that the IEEE Transactions on Medical Imaging will be publishing a special issue on Electrical Impedance Imaging. Topics to be included cover nearly all aspects of the discipline. A Call for Papers can be found in recent issues of the journal or on-line at http://www.ieee-tmi.org/ieee/call_for_EII_papers.html More information about this journal can be found at http://www.ieee-tmi.org/ The impact of this journal has recently been studied and reported in an editorial published on the first page of the December 2000 issue (IEEE Trans. MI 19(12):1157-1159). The Institute for Scientific Information recently ranked TMI first among 200 journals in the electrical and electronic engineering field, based on its impact factor and citation half-life. The deadline for submissions is September 1, 2001, with publication expected in June 2002. Sincerely, Jennifer Mueller, David Isaacson, and Jonathan Newell ----------------------------- From: "Janet Thomas" Subject: Contents list for Inverse Problems vol 17, issue 4 Date: Mon, 23 Jul 2001 Inverse Problems August 2001 Volume 17, Issue 4 Table of Contents SPECIAL ISSUE TO CELEBRATE PIERRE SABATIER'S 65TH BIRTHDAY Editorial Theoretical Spectral Problems The linear sampling method and the MUSIC algorithm M Cheney Inequalities for inverse scattering problems in absorbing media D Colton and M Piana Uniqueness of recovery of some systems of semilinear partial differential equations V Isakov Small-energy asymptotics for the Schrodinger equation on the line T Aktosun and M Klaus Intertwining relations between the Fourier transform and discrete Fourier transform, the related functional identities and beyond V B Matveev Dynamical systems with boundary control: models and characterization of inverse data M I Belishev Unusual (non-Gamow) decay states V M Chabanov and B N Zakhariev The x-ray transform for a non-Abelian connection in two dimensions D Finch and G Uhlmann A time-dependent approach to the inverse backscattering problem G Uhlmann Global Lipschitz stability in an inverse hyperbolic problem by interior observations O Yu Imanuvilov and M Yamamoto Convexity for the diffuse tomography model B F Svaiter and J P Zubelli ALGORITHMS AND REGULARIZATION TECHNIQUES An efficient mollifier method for three-dimensional vector tomography: convergence analysis and implementation T Schuster On the regularizing properties of a full multigrid method for ill-posed problems B Kaltenbacher Estimation of discontinuous parameters of elliptic partial differential equations by regularization for surface representations S Kindermann and A Neubauer Prolate spheroidal wavefunctions, quadrature and interpolation H Xiao, V Rokhlin and N Yarvin Numerical solution of a Cauchy problem for the Laplace equation F Berntsson and L Elden EVOLUTION EQUATIONS Short-wave dynamics in the Euler equations M A Manna and A Neveu Short-wave instabilities in the Benjamin--Bona--Mahoney--Peregrine equation: theory and numerics S M Gama, R A Kraenkel and M A Manna Periodic solutions of a many-rotator problem in the plane F Calogero and J-P Francoise Liouville equation under perturbation L A Kalyakin A reformulation of the `dressing method' for the Sawada--Kotera equation A Parker Soliton-like dynamics of filtrons of cyclic automata P Siwak Integrable evolution equations in time-dependent domains A S Fokas and B Pelloni Towards an inverse scattering theory for non-decaying potentials of the heat equation M Boiti, F Pempinelli, A K Pogrebkov and B Prinari Virtual solitons and the asymptotics of second harmonic generation D J Kaup and H Steudel Nearly integrable nonlinear equations on the half line describing the resonant interaction of radiation with matter E V Doktorov and V S Shchesnovich Rational solutions of the KP equation through symmetry reductions: coherent structures and other solutions E Medina and M J Marin $N$-wave interactions related to simple Lie algebras. $Z_2$-reductions and soliton solutions V S Gerdjikov, G G Grahovski, R I Ivanov and N A Kostov Algebraic geometrical solutions for certain evolution equations and Hamiltonian flows on nonlinear subvarieties of generalized Jacobians M S Alber and Y N Fedorov A nonisospectral problem in $(2+1)$ dimensions derived from KP P G Estevez A study of the construction of equations in ($2+1$) dimensions K Toda and S-J Yu Differential constraints for the Kaup--Broer system as a reduction of the 1D Toda lattice A K Svinin Classical Darboux transformations and the KP hierarchy F Lambert, I Loris and J Springael APPLIED INVERSE PROBLEMS Inverse scattering for shape and impedance R Kress and W Rundell Shape reconstruction of buried obstacles by controlled evolution of a level set: from a min--max formulation to numerical experimentation C Ramananjaona, M Lambert, D Lesselier and J-P Zolesio Obstacle localization in an homogeneous half-space N I Grinberg Determination of point wave sources by boundary measurements A El Badia and T Ha-Duong On shape optimization of optical waveguides using inverse problem techniques T Felici and H W Engl Generalized Gaussian quadrature applied to an inverse problem in antenna theory G D de Villiers, F B T Marchaud and E R Pike Simultaneous reconstruction of the initial temperature and heat radiative coefficient M Yamamoto and J Zou Inverse homogenization for evaluation of effective properties of a mixture E Cherkaev CONCLUSION Should we study sophisticated inverse problems? P C Sabatier Submitted by: Janet Thomas Electronic Journals Producer 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@iop.org=20 WWW: http://www.iop.org=20 ----------------------------- From: Hans Schneider Subject: LAA contents Date: Sun, 19 Aug 2001 Linear Algebra and its Applications Sept. 2001 Vol. 335, Issue 1-3 Table of Contents Matrix algebras in optimal preconditioning C. Di Fiore, P. Zellini The c-numerical range of tridiagonal matrices M.-T. Chien, H. Nakazato The factorability of symmetric matrices and some implications for statistical linear models S.P. Smith On similarity invariants of matrix commutators S. Furtado, E.A. Martins, F.C. Silva A matrix formulation of Gruss inequality P.F. Renaud Rank equalities for idempotent and involutary matrices Y. Tian, G.P.H. Styan Quasi-filiform lie algebras of maximum length J.R. Gomez, A. Jimenez-Merchan, J. Reyes Comparison of perturbation bounds for the stationary distribution of a Markov chain G.E. Cho, C.D. Meyer Equilibrated anti-Monge matrices M. Fiedler Characteristic polynomials and controlability of partially prescribed matrices G. Cravo, J.A. Dias da Silva, F.C. Silva Obtuse cones and Gram matrices with nonnegative inverse A. Cegielski A characterization of the drazin inverse L. Zhang DGMRES: A GMRES-type algorithm for Drazin-inverse solution of singular non-symmetric linear systems A. Sidi Please note: The access restrictions on articles/abstracts vary. Many journals have free access to abstracts, but in general access to full text PDFs is restricted to subscribers. Visit the journal at 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 -------