IPNet Digest Volume 2, Number 05 May 17, 1995 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: Report of Workshop on Inverse Problems in Engineering New Book: Conjugate Gradient Type Methods for Ill-Posed Problems Position Announcement: Experience in Inverse Problems Needed Table of Contents: SIAM Journal on Mathematical Analysis Table of Contents: SIAM Journal on Control and Optimization Submissions for IPNet Digest: Mail to ipnet-digest@math.msu.edu Information about IPNet: Mail to ipnet-request@math.msu.edu ------------------------------ From: IPNet Subject: Report of Workshop on Inverse Problems in Engineering Date: Tue, 16 May 95 09:29:59 The 2nd Joint Russian-American Workshop on Inverse Problems in Engineering, sponsored by the Moscow Aviation Institute, was held in St.Petersburg, Russia, on August 21, 26, and 27 of 1994. The final report of the Workshop has been made available to the IPNet by James V. Beck of Michigan State University, and may be accessed electronically via one of the following methods: (1) Send a message to ipnet-request@math.msu.edu with the following in the BODY of the message: send Report_on_Russian_American_Workshop Or, (2) via anonymous ftp to math.msu.edu to retrieve the file /pub/ipnet_archive/Report_on_Russian_American_Workshop Or, (3) via gopher (math.msu.edu) (also, via the gopher selection from http://www.mth.msu.edu). ------------------------------ From: hanke@ipmsun1.mathematik.uni-karlsruhe.de (Martin Hanke) Subject: New Book on Conjugate Gradients Date: Mon, 15 May 1995 10:01:05 Announcement of a new book: CONJUGATE GRADIENT TYPE METHODS FOR ILL-POSED PROBLEMS Martin Hanke (Universitat Karlsruhe, Germany) Publisher: Pitman Research Notes in Mathematics Longman Scientific & Technical Longman House Harlow, Essex CM20 2JE UK Prize: UK pounds 23 About the book: The conjugate gradient method is a powerful tool for the iterative solution of selfadjoint operator equations in Hilbert space. This volume summarizes and extends the developments of the past decade concerning the applicability of the conjugate gradient method (and some of its variants) to ill-posed problems and their regularization. This Research Note presents a unifying analysis of an entire family of conjugate gradient type methods. Most of the results are as yet unpublished, or obscured in the Russian literature. Beginning with original results by Nemirovskii and others for minimal residual type methods, equally sharp convergence results are then derived for the classical Hestenes-Stiefel algorithm. In the final chapter some of these results are extended to selfadjoint indefinite operator equations. The main tool for the analysis is the connection of conjugate gradient type methods to real orthogonal polynomials, and elementary properties of these polynomials. These prerequisites are provided in a first chapter. Applications to image reconstruction and inverse heat transfer problems are pointed out, and exemplarily numerical results are shown for these applications. ------------------------------ From: jen@chensun4a.tamu.edu (Jan-Erik Nordtvedt) Subject: Position Announcement Date: Sun, 14 May 95 10:43:35 Position Announcement RF - Rogaland Research is one of the leading, multidisciplinary research institutes in Norway, with main office in Stavanger, and a branch in Bergen. RF -- Rogaland Research has more than 250 employees organized into three divisions: RF - Petroleum, RF - Society, and RF - Industry and Environment. RF - Rogaland Research is directed to current and future contributions to industry and society within advanced technological and social science research. In our branch in Bergen, we now have a position open for a Senior Research Scientist with a PhD in physics, mathematics, statistics, or within engineering. The position is open from August 15, 1995. We prefer 2-5 years experience, but newly graduated PhD candidates will be considered. The candidate should have some experience in inverse (or system and parameter identification) problems. The Senior Research Scientist will work within our international initiative to develop theory and methodologies for solving inverse problems in engineering contexts. This strategic initiative was established in cooperation with University of Bergen, Norway, and Texas A&M University, College Station, TX, USA. The effort has received significant funding from the Norwegian Research Council, and several, larger, industrial programs are currently underway. The current focus areas are directed to the petroleum industry, although other areas will be pursued in the future. The Senior Research Scientist will be expected to foster activities directed to increasing the funding base.  Applications will be accepted up to June 15, 1995, or until the position is filled. Please send a full Curriculum Vitae and copies of all relevant publications to: Dr. Jan-Erik Nordtvedt, Research Coordinator, Chem. Eng. Dept., Texas A&M University, College Station, TX 77843-3122, USA. For further information, please contact Dr. Nordtvedt: E-mail: jen@chensun4a.tamu.edu; Phone: +409 845 8177; Fax: +409 847 8590. ------------------------------ From: young@siam.org Subject: SIAM J. Math. Anal., Volume 26, Number 4, Contents Date: Fri, 05 May 95 13:43:35 SIAM J. Math. Anal. Volume 24, Number 3 Table of Contents Elliptic-Parabolic Equations with Hysteresis Boundary Conditions Ulrich Hornung and R. E. Showalter Regularity for the Interfaces of Evolutionary p-Laplacian Functions Hi Jun Choe and Jongsik Kim Energy Estimates Relating Different Linear Elastic Models of a Thin Cylindrical Shell II: The Case of Free Boundary Jyrki Piila and Juhani Pitkaranta A Global Existence and Uniqueness Theorem for a Model Problem in Dynamic Elasto-Plasticity with Isotropic Strain-Hardening A. Nouri and M. Rascle On Coupled Integral H-Like Equations of Chandrasekhar Jonq Juang Analyse spectrale d'une bande acoustique multistratifiee I: Principe d'absorption limite pour une stratification simple Elisabeth Croc et Yves Dermenjian Pyramidal Algorithms for Littlewood--Paley Decompositions M. A. Muschietti and B. Torresani Semiclassical Asymptotics beyond All Orders for Simple Scattering Systems Alain Joye and Charles-Edouard Pfister Bifurcation of Spatial Central Configurations from Planar Ones Richard Moeckel and Carles Simo A Mathematical Model of Traffic Flow on a Network of Unidirectional Roads Helge Holden and Nils Henrik Risebro Characterization of Lp-Solutions for the Two-Scale Dilation Equations Ka-Sing Lau and Jianrong Wang Interval Oscillation Conditions for Difference Equations Q. Kong and A. Zettl Nontensor Product Wavelet Packets in L2(Rs) Zuowei Shen Asymptotic Regularity of Compactly Supported Wavelets Hans Volkmer ------------------------------ From: thomas@siam.org Subject: SICON 33-4 table of contents Date: Fri, 12 May 95 16:21:42 EST SIAM Journal on Control and Optimization July 1995 Volume 33, Number 4 Table of Contents Feedback Laws for Nonlinear Distributed Control Problems via Trotter-Type Product Formulae Catalin Popa Regularity Conditions for the Stability Margin Problem with Linear Dependent Perturbations Antonio Vicino and Alberto Tesi The H_infinity Problem for Infinite-Dimensional Semilinear Systems Viorel Barbu Relaxed Minimax Control E. N. Barron and R. Jensen Sensitivity Analysis in Nonlinear Programs and Variational Inequalities via Continuous Selections Jiming Liu A Result Concerning Controllability for the Navier-Stokes Equations E. Fernandez-Cara and M. Gonzalez-Burgos Smoothly Global Stabilizability by Dynamic Feedback and Generalizations of Artstein's Theorem John Tsinias A Mixed l_infinity/H_infinity Optimization Approach to Robust Controller Design Mario Sznaier Orders of Input/Output Differential Equations and State-Space Dimensions Yuan Wang and Eduardo D. Sontag Matrix Pairs in Two-Dimensional Systems: An Approach Based on Trace Series and Hankel Matrices Ettore Fornasini and Maria Elena Valcher Lyapunov-like Techniques for Stochastic Stability Patrick Florchinger On Feedback Equivalence of a Parameterized Family of Nonlinear Systems J.-B. Pomet and I. A. K. Kupka Necessary Conditions for Bilevel Dynamic Optimization Problems Jane J. Ye Using Persistent Excitation with Fixed Energy to Stabilize Adaptive Controllers and Obtain Hard Bounds for the Parameter Estimation Error Miloje S. Radenkovic and B. Erik Ydstie Identification of q(x) in u_t=delta u - qu from Boundary Observations Sergei Avdonin and Thomas I. Seidman Exact Observability of the Time-Varying Hyperbolic Equation with Finitely Many Moving Internal Observations A. Yu. Khapalov Rendezvous Search on the Line with Distinguishable Players Steve Alpern and Shmuel Gal Erratum: Observability and Observers for Nonlinear Systems J.-P. Gauthier and I. A. K. Kupka ------- end -------