IPNet Digest Volume 6, Number 05 June 30, 1999 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: IPNet Server Working Again Workshop Held: Inverse Problems of Chemistry Meetings: SIAM Meeting Announcements New books: New Titles in Inverse and Ill-Posed Problems Series Special Issue: Linear Algebra and its Applications Position: Professorship for Scientific Computing Table of Contents: Inverse Problems in Engineering Table of Contents: Journal of Inverse and Ill-Posed Problems Table of Contents: Inverse Problems Table of Contents: Mathematics of Control, Signals, and Systems 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: ipnet@math.msu.edu Subject:IPNET Server Working Again Date: Tue, 15 Jun 1999 The server handling the IPNet crashed at the end of May 1999 and had to be replaced. This meant that for over a week (in late May and early June), users may have had difficulty reaching the IPNet. We apologize for any inconvenience this may have caused. The new IPNet server should be fully operational now. -ipnet ------------------------------ From: "Professor Yagola" Subject: workshop on inverse problems of chemistry Date: Sun, 27 Jun 1999 The first workshop on Inverse Problems of Chemistry has been held on June, 12-13, 1999, at Birsk Educational University (Birsk, Bashkortostan, Russian Federation). Organizers are Yu.B. Monakov, V.P. Budtov, S.I. Spivak, S.M. Usmanov, A.G. Yagola, P.A.Yakshibaev. The main direction of discussions was pointed out on the inverse problems of polymer chemistry and vibrational spectroscopy. The next workshop is scheduled on June, 2001. Anatoly G. Yagola, Dr. Sc., Professor, Department of Mathematics, Faculty of Physics, Moscow State University, Moscow 119899, Russia Mailing address(home): 18-2-93 Matveevskaya Str., Moscow 119517, Russia Tel.(home): (7)(095)442-3335 FAX: (7)(095)932-8820 E-mail: yagola@inverse.phys.msu.su ------------------------------ From: flores@siam.org Subject: SIAM Meeting Announcements Date: Thu, 06 May 99 Eighth International Conference on Numerical Combustion March 5-8, 2000 Amelia Inn and Beach Club Amelia Plantation, Amelia Island, Florida Conducted by Society for Industrial and Applied Mathematics (SIAM) with the cooperation of Institut National de Recherche en Informatique et en Automatique (INRIA) September 1, 1999: Deadline for submission of minisymposium proposals September 15, 1999: Deadline for submission of contributed abstracts for lecture or poster presentations For instructions on how to submit minisymposium proposals and abstracts and to obtain more information about the Combustion conference, visit: www.siam.org/meetings/nc00/. ============== Eleventh Annual ACM-SIAM Symposium on Discrete Algorithms SODA 2000 January 9-11, 2000 Holiday Inn Golden Gateway Hotel San Francisco, California Conducted by Society for Industrial and Applied Mathematics (SIAM) and sponsored by ACM Special Interest Group on Algorithms and Computation Theory (SIGACT) and SIAM Activity Group on Discrete Mathematics (SIAG/DM) Deadline for Abstract Submission: Long form (10 pages): July 13, 1999 Short form (2 pages): July 30, 1999 For instructions on how to submit extended abstracts and to obtain more information about SODA 2000, visit: www.siam.org/meetings/da00/ ------------------------------ From: "VSP, marketing department" Subject: New titles in " Inverse and Ill-Posed Problems Series" Date: Wed, 23 Jun 1999 Recently published in the "Inverse and Ill-Posed Problems Series": Volterra Equations and Inverse Problems A.L. Bughgeim 1999; x+204 pages ISBN 90-6764-302-5 DEM 190/USD 113/GBP 71 www.vsppub.com/books/mathe/bk-VolEquInvPro.html Elements of the Theory of Inverse Problems A.M. Denisov 1999; viii+272 pages ISBN 90-6764-303-3 DEM 236/USD 141/GBP 88 www.vsppub.com/books/mathe/bk-EleTheInvPro.html 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: Hans Schneider Subject: LAA announcment Linear Algebra and its Applications Special Issue on INFINITE SYSTEMS OF LINEAR EQUATIONS FINITELY SPECIFIED One of the traditional hunting grounds of linear algebra is the area of finite systems of linear equations, as described by a matrix equation $Ax = b$. Here $A$ is a known matrix, $b$ a known vector of finite dimensions, and $x$ is an unknown vector of finite dimensions, which is to be determined such that the equation is either satisfied, or, if that is not possible, approximately satisfied. Many techniques are known for finding solutions or approximate solutions, depending on the properties of the given data and the approximation technique choosen. If the system of equations is not finite, i.e. $A$ is not a matrix but an operator, and $b$ and $x$ are of infinite dimension, then algebraic and numerical techniques can still be used provided the given data are finitely specified. Operators with such a property are often called 'structured operators', and it turns out that one can solve such infinite equations in an exact or approximate sense using finite methods and algorithms. The conjunction of linear algebra and inversion theory for finitely specified infinite operators brings interesting connections to the forefront: algebraic equivalents of inner-outer factorizations e.g., or the algebraic significance of Kalman filtering. Structured matrices can be of many types, e.g. systems with finite displacement ranks or time-varying systems with state spaces of finite dimensions and whose limiting behaviour is known, e.g. as a time invariant system. A non-limiting list of topics of interest in this area is (assuming $A$ is an infinite but finitely described operator of some kind): - inversion methods - decomposition methods for the operator A - quadratic approximation methods - complexity reduction - equivalencies - canonical forms - transform techniques. Examples of operator structure: - systems with low displacement rank - finitely described time-varying systems - finitely described almost-periodic systems - differentials of non-linear systems. Interested authors are kindly invited to submit full papers with significant contributions to this area to any of the three guest editors listed below before June 1st, 2000. Patrick Dewilde DIMES, Delft University of Technology POB 5031, 2600GA Delft, the Netherlands. Fax: +31 15 262 3271 email: dewilde@DIMES.tudelft.nl Vadim Olshevsky Department of Mathematics and Computer Science Georgia State University University Plaza Atlanta, GA 30303, USA Fax: +1 404 651 2246 email: volshevsky@cs.gsu.edu Ali Sayed Rm 44-123A Engr. IV Bldg Dept. of Electrical Engineering University of California Los Angeles, CA 90095-1594, USA Fax: +1 310 206 8495 email: sayed@biruni.icsl.ucla.edu 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) 20 June - 09 July 1999 hershkow@math.wisc.edu ------------------------------ From: "PROF.HEINZ W. ENGL" Subject: position announcement Date: Thu, 17 Jun 1999 Announcement of a Professorship for Scientific Computing The College of Science and Engineering of the Johannes Kepler University in Linz (Austria) advertises a newly created professorship (second salary category) for Scientific Computing to be filled on or after October 1, 2000. We are looking for a mathematician with habilitation or equivalent qualification with a relevant publication record preferably in the area of eometric analysis in connection with nonlinear partial differential equations or calculus of variations, especially scientific visualization. Candidates should be able to establish and lead an externally-funded research group; they should have the necessary pedagogical qualification for teaching at all levels. Applicants whose research profile fits into the Special Research Project "Numerical and Symbolic Scientific Computing" will be preferred; this special research project deals with the interaction between numerics, symbolics and graphics in connection with partial differential equations from science and technology. Especially the areas of graphics and of software technology for mathematical systems should be strengthened by this appointment. The Johannes Kepler University specifically encourages female candidates to apply, with a view to increasing the proportion of female professors. Women candidates will be given preference over equally qualified male applicants. Applications should be accompanied by a curriculum vitae, list of publications, teaching record, and copies of five of the candidate's most important and relevant publications and should be submitted to Dean Prof. Dr.Heinz W. ENGL, Dekanat der TNF, Johannes Kepler Universitaet Linz, Altenbergerstr. 69, A-4040 Linz, Austria, no later than Nov. 12, 1999. 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 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: James Beck Subject: Contents: Inverse Problems in Engineering Date: Mon, 03 May 1999 Inverse Problems in Engineering 1999 Vol. 7, Number 2 Table of Contents Inverse Method of Computing Coefficient of Thermal Expansion Using Interferometric Data G. Lipshitz, A. Haji-Sheikh and W.S. Chan Prediction of Local Thermal Contact Conductance in Plate Finned-Tube Heat Exchangers C.-H. Huang, D.-M. Wang and H.-M. Chen A Comparison of Higher-Order Generalized Eigensystem Techniques and Tikhonov Regularization for the Inverse Problem of Electrocardiography R.D. Throne, L.G. Olson and T.J. Hrabik ------------------------------ From: "VSP, marketing department" Subject: Contents of Journal of Inverse and Ill-Posed Problems Date: Wed, 19 May 1999 Journal of Inverse and Ill-Posed Problems 1999 Vol. 7, No. 3 Table of Contents Inverse dissipative problems in vertical seismic profiling A.V. Baev and G.Yu. Melnikov Dynamical variant of the BC-method: theory and numerical testing M.I. Belishev and V.Yu. Gotlib Generic well-posedness of a linear inverse parabolic problem with diffusion parameters M. Choulli and M. Yamamoto How to draw a picture of an unknown inclusion from boundary measurements. Two mathematical inversion algorithms M. Ikehata Nonstationary inverse problems and state estimation J. Kaipio and E. Somersalo Inverse elastic scattering at a fixed energy G. Nakamura and G. Uhlmann 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: "Martin Beavis" Subject: Contents, Inverse Problems, Volume 15, Issue 3 Date: Tue, 25 May 1999 Inverse Problems June 1999 Volume 15, Issue 3 Table of Contents NOTE FROM THE EDITORIAL BOARD TOPICAL REVIEW Uniqueness, stability and numerical methods for the inverse problem that arises in financial markets I Bouchouev and V Isakov PAPERS Some results about Schiffer's conjectures T Chatelain and A Henrot On the determination of an unknown boundary function in a parabolic equation M Choulli An inverse problem for the magnetic force microscopy of a superconducting sphere M W Coffey Inverse coefficient problems in perturbed half spaces G Eskin and J Ralston Solution of the initial-boundary value problem for the Karpman--Kaup equation F-X Hugot and J Leon Inverse problems with structural prior information J P Kaipio, V Kolehmainen, M Vauhkonen and E Somersalo Regularization of a non-characteristic Cauchy problem for a parabolic equation in multiple dimensions Y Knosowski, E von Lieres and A Schneider Solving inverse problems for ordinary differential equations using the Picard contraction mapping H E Kunze and E R Vrscay Velocity reconstruction in conducting fluids from magnetic field and electric potential measurements F Stefani and G Gerbeth Nonlinear integrodifferential equations as discrete systems K M Tamizhmani, J Satsuma, B Grammaticos and A Ramani Inverse spectral problems for weighted Dirac systems B A Watson COMMENT A note on an integrable discretization of the nonlinear Schr\"odinger equation W Black, J A C Weideman and B M Herbst Visit the Inverse Problems home page at http://www.iop.org/Journals/ip Submitted by: Martin Beavis, Production Editor Institute of Physics Publishing Dirac House,Temple Back,=20 Bristol, BS1 6BE, UK Tel: Direct line: +44 (0)117 930 1087 Switchboard: +44 (0)117 929 4781 Fax: +44 (0)117 929 4318 E-mail: martin.beavis@ioppublishing.co.uk=20 WWW: http://www.iop.org ------------------------------ From: Secretary Support - Magrijn Subject: Journal MCSS, Vol. 12, Nos. 1-2 Date: Fri, 21 May 1999 Mathematics of Control, Signals, and Systems 1999 Vol. 12, No. 1 Table of Contents Finite horizon minimax optimal control of stochastic partially observed time varying uncertain systems V.A. Ugrinovskii and I.R. Petersen New algorithms for polynomial J-spectral factorization H.L. Trentelman and P. Rapisarda On the learnability of recursive data B. Hammer The realization problem for hidden Markov models B.D.O. Anderson Mathematics of Control, Signals, and Systems 1999 Vol. 12, No. 2 Table of Contents Global normal forms of MIMO nonlinear systems, with applications to stabilization and disturbance attenuation B. Schwartz, A. Isidori and T.J. Tarn A global asymptotic stability result for a class of totally asynchronous discrete nonlinear systems V.S. Kozyakin, A. Bhaya and E. Kaszkurewicz Maximal and stabilizing Hermitian solutions for discrete-time coupled algebraic Riccati equations O.L.V. Costa and R.P. Marques Linear quadratic optimal control of time-varying systems with indefinite costs on Hilbert spaces B. Jacob INFORMATION Information on MCSS including tables of contents is available at its home pages: www.cwi.nl/~schuppen/mcss/mcss.html www.math.rutgers.edu/~sontag/mcss.html Address for submissions: J.H. van Schuppen (Co-Editor MCSS) CWI P.O.Box 94079 1090 GB Amsterdam The Netherlands Bradley Dickinson, Eduardo Sontag, Jan van Schuppen (Editors) Submitted by: Corry Magrijn (Secretary) for Jan H. van Schuppen (Co-Editor) ------------------------------ From: Hans Schneider Subject: LAA, volumes 292-293 Date: Thu, 10 Jun 1999 Linear Algebra and Its Applications June 1999 Vol. 292, Nos. 1-3 Table of Contents Eigenvalue analysis of equilibrium processes defined by linear complementarity conditions A Seeger How fast can one compute the permanent of circulant matrices? A Bernasconi, G Resta Lenear conditions for positive determinants JM Carnicer Products of three triangular matrices KR Nagarajan, T Soundararajan Feedback invariants of matrix quadruple completions I Zaballa A projective simplex method for linear programming PQ Pan Majorization via generalized Hessenberg matrices S Hwang Some inequalities for norms on matrices and operators JC Bourin Spectral properties of the transition operator associated to a multivariate refinement equation RONGQING Jia A remark on pattern problems for matrix groups NQ Thang The algebraic riccati inequality: parametrization of solutions, tightest local frames and generalized feedback matrices A Ferrante G-majorization inequalities for linear maps M Niezgoda Elementary bidiagonal factorizations CR Johnson, P Van Den Driessche Matrix manifolds and the Jordan structure of the bialternate matrix product W Govaerts Biclique decomposition and hermitian rank DA Gregory Notes on cartesian symmetry classes and generalized trace functions TG Lei Positive semi-definiteness in a group algebra TG Lei Thin structure of eigenvalue clusters for non-hermitian toeplitz matrices EE Tyrtyshnikov Linear Algebra and Its Applications July 1999 Vol. 293 Nos. 1-3 Table of Contents On the equality of families of decomposable symmetrized tensors A Fonseca Multiresolution on compact groups A Lim Some inequalities for sum and product of positive semidefinite matrices BY Wang, F Zhang On the characteristic polynomial of matrices with prescribed rows S Furtado, FC Silva On the recognition and rigidity problems for sums of matrices O Neto, FC Silva Spectral and structural analysis of high precision finite differences matrices for elliptic operators S Serra Capizzano The cycle time vector of D-A-D functions E Katirtzoglou Spectra and elementary cycles of the digraphs with unique paths of fixed length Yaokun Wu On the coxeter polynomials of wild stars P Lakatos Positive matrix factorization via extremal polyhedral cones JM Van Den Hof, JH Van Schuppen Nonlinear resonance set for nonlinear matrix equations C Margulies, W Margulies Almost periodic factorization of block triangular matrix functions revisited YI Karlovich, IM Spitkovsky Some inequalities of Schur complements J Liu Expanded systems and the ILU preconditioner for solving non-Hermitian linear systems EH Ayachour Graphical matroid for causality assignment in bond-graphs H Haffaf, G Dauphin-Tanguy Reverse order laws for generalized inverses of multiple matrix products M Wei 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) 20 June - 09 July 1999 at the Technion, Haifa, Israel ------- end -------