IPNet Digest Volume 11, Number 04 April 30, 2004 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: SIAM Conference on Partial Differential Equations SIAM Conference on Mathematical Aspects of Materials Science SIAM 2004 Annual Meeting ACM-SIAM Symposium on Discrete Algorithms CISM Course on Nonsmooth Mechanics of Solids New Book in the Inverse and Ill-Posed Problems Series Postdoc, Student Positions in Applications of Imaging Science Editor Nominations for International Journal of Tomography Table of Contents: Nonlinear Analysis: Modelling and Control 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: "Darrell Ross" Subject: SIAM Conference on Partial Differential Equations Date: Fri, 16 Apr 2004 Conference Name: SIAM Conference on Partial Differential Equations Location: Houston Post Oak Doubletree Hotel, Houston, Texas Dates: December 6-8, 2004 The Call for Presentations for this conference is now available at: www.siam.org/meetings/pd04/index.htm For additional information, contact SIAM Conference Department at meetings@siam.org Darrell Ross SIAM, Conference Program Manager Conference Web Master ross@siam.org ----------------------------- From: "Darrell Ross" Subject: SIAM Conference on Mathematical Aspects of Materials Science Date: Tue, 13 Apr 2004 Conference Registration Reminder SIAM Conference on Mathematical Aspects of Materials Science (MS04) May 23-26, 2004 Hyatt Regency Los Angeles at Macy's Plaza Los Angeles, California http://www.siam.org/meetings/ms04/index.htm It's not too late! The SIAM Conference on Mathematical Aspects of Materials Science on-line registration is still open! Registration closes Monday, May 3, 2004 at 4PM Eastern Time. Register now and save $100! http://www.siam.org/meetings/ms04/ Darrell Ross SIAM, Conference Program Manager Conference Web Master ross@siam.org PLEASE NOTE: International attendees planning to attend conferences in the USA may already be aware that there have been recent changes to the visa program for scientific visitors, which affect even people from visa waiver countries. The site http://www7.nationalacademies.org/visas/ maintained by the National Academies, provides guidance on obtaining the necessary documents. ----------------------------- From: Connie Young Subject: 2004 SIAM Annual Meeting Date: Fri, 23 Apr 2004 Conference Name: 2004 SIAM Annual Meeting Location: Portland, Oregon Dates: July 12-16, 2004 Program and registration information is available at: http://www.siam.org/meetings/an04/ Meeting Registration Deadline: Monday, June 14, 2004 Hotel Reservation Deadline: Friday, June 11, 2004 For additional information visit http://www.siam.org/meetings/an04/ or contact SIAM Conference Department at meetings@siam.org. ----------------------------- From: Kirsten Wilden Subject: ACM-SIAM Symposium on Discrete Algorithms Date: Wed, 07 Apr 2004 Subject: ACM-SIAM Symposium on Discrete Algorithms CFP Deadline Conference Name: ACM-SIAM Symposium on Discrete Algorithms Location: Sheraton Vancouver Wall Center Hotel, Vancouver, British Columbia Dates: January 23-25, 2005 The Call for Presentations for this conference is available at: http://www.siam.org/meetings/DA05/ **Deadline** Submission Deadline: July 5, 2004 For additional information, contact the SIAM Conference Department at meetings@siam.org. ----------------------------- From: "Georgios E. Stavroulakis" Subject: CISM Course on Nonsmooth Mechanics of Solids Date: Tue, 20 Apr 2004 International Centre for Mechanical Sciences Centre International des Sciences Mecaniques NONSMOOTH MECHANICS OF SOLIDS Advanced School Coordinated by J. Haslinger, and G.E. Stavroulakis CISM, Udine, Italy, October 4 - 8, 2004 More details: in http://www.cism.it Lecturers: M. Fremond, Ch. Glocker, J. Haslinger, Z. Naniewicz, G.E. Stavroulakis Short Description: In many real-life problems coming from engineering or economics one can encounter nondifferentiable or discontinuous functions and set-valued mappings. A deep study of the properties of these maps including a certain generalized differential calculus is the subject of nonsmooth analysis. We shall focus on some problems in mechanics of solids which lead to such models. The classical mechanics (statics and dynamics) of solids provide a large number of nonsmooth effects: contact problems, collisions, stick-slip motions connected with friction, delaminations in composites. All these effects can be mathematically described by means of differential inclusions. The mathematical research in this area began at sixties assuming multivalued parts to be represented firstly by maximal monoto-ne mappings, i.e. the case leading to variational inequalities. The monotonicity assumption however turns out to be very restrictive. In practice, we meet a lot of problems whose basic constitutive laws are no longer monotone. At the beginning of eighties Prof. P.D. Panagiotopoulos used tools of nonsmmoth analysis and introduced what he called hemivariational inequalities (HE). HE’s represent an appropriate mathematical tool enabling us to involve nonmonotone multivalued relations into the model. Due to HE’s, the range of problems which can be now rigorously treated is enlarged. The goal of this course is to illustrate the potential of nonsmooth analysis in modelling of various problems in mechanics of solids. The emphasis will be laid on the completeness and mathematical correctness of the presentation, although several industrial applications will be presented. It will cover the following topics: nonsmooth modelling of problems in mechanics of solids, the mathematical theory of variational and hemivariational inequalities, approximation of variational and hemivariational inequalities by finite element and boundary element methods, the numerical realization (including smoothing and regularisation techniques), algorithms and applications from civil and mechanical engineering and related optimal design and identification problems. A number of well-known experts and active researchers in the field, including mathematicians and engineers, will report on classical and new results covering all the above mentioned topics. The presentation of all these topics will be carefully balanced between theory, numerical methods and applications. The summer school is addressed to graduate students, PhD candidates and young faculty members in mathematics, physical sciences and engineering. Engineers working on advanced applications of computational mechanics and modelling of highly nonlinear and nonsmooth effects such as contact and friction problems in industry (civil, aerospace, automotive) as well as applied mathematicians and computer scientists (dealing with nonsmooth analysis, optimisation, calculus of variations, computational mechanics) will benefit from the course. For more details and application forms, please visit the web page of CISM http://www.cism.it Submitted by: Georgios Stavroulakis University of Ioannina, Greece http://www.math.uoi.gr/~gestavr gestavr@cc.uoi.gr ----------------------------- From: "Klibanov, Michael" Subject: New book in the Inverse and Ill-Posed Problems Series Date: Thu, 22 Apr 2004 Inverse and Ill-Posed Problems Series Carleman Estimates for Coefficient Inverse Problems and Numerical Applications Michael V. Klibanov and Alexandre Timonov This is the first book dedicated to applying the Carleman estimates to coefficient inverse problems. Coefficient inverse problems consist of determining the variable coefficients of partial differential equations from the boundary measurements of their solutions. Such problems arise in a number of applications of particular interest to natural sciences and technology, such as medical imaging, underwater acoustics and electromagnetics, non-destructive evaluation, geophysics of exploration, etc.. The main difficulty in solving coefficient inverse problems is due to their nonlinearity and ill-posedness. This monograph presents one of the most powerful tools for the mathematical treatment of such problems, the method of Carleman estimates. Originally introduced in the field of inverse problems by A.L. Bukhgeim and M.V. Klibanov in 1981, the method of Carleman estimates has become popular in the applied mathematics community. Written in a readable and concise manner, the book introduces the reader to the essence of the techniques used for deriving Carleman estimates and using them for proofs of global uniqueness and stability results for coefficient inverse problems. The core of the book is two most recent advances of the authors. These are the global uniqueness of a multidimensional coefficient inverse problem for a nonlinear parabolic equation and the so-called convexification framework for constructing globally convergent algorithms for the numerical solution of coefficient inverse problems. Several applications of the convexification to magnetotelluric frequency sounding, electrical impedance tomography, infra-red optical sensing of biotissies, and time reversal are discussed. The effectiveness of convexification algorithms is demonstrated in computational experiments. This monograph is of value and interest to researchers in the fields of inverse problems in partial differential equations, numerical methods, mathematical modeling, scientific computing, in both academia and industry. 2004; vi+280 pages ISBN 90-6764-405-6 Price: EUR 150/US$ 203 See http://www.vsppub.com/books/mathe/bk-CarEstCoeInvProNumApp.html Home BackBooks Journals Search Index Ordering VSP, P.O. Box 346, 3700 AH Zeist, The Netherlands Tel: +31 30 692 5790, Fax: +31 30 693 2081 E-mail: vsppub@brill.nl ----------------------------- From: Clifford Nolan Subject: Postdoc and Grad Student positions available at University of Limerick Date: 01 Apr 2004 Cliff Nolan at University of Limerick maths and stats department is seeking a postdoc and grad student(s) to work on a SFI (Science Foundation Ireland) funded project entitled 'High-frequency wave propagation and its applications to imaging science'. The grant will run for at least four years, starting in September, 2004. The research team will consist of Cliff Nolan (principal investigator at UL), Margaret Cheney (RPI), Gunther Uhlmann (UW), Andrew Fowler (Oxford, and UL adjunct), Don Barry, (UL), Eugene Benilov (UL), Alan Hegarty (UL) and Stephen O' Brien (UL). Adequate computing and international travel funds are also included in the grant. UL maths and stats department has an active research program with numerous masters and Ph.D. students being trained. This should provide for a vigorous research environment. The postdoc salary will be approximately 40,000 euro p.a.and a stipend of approximately 12,000 euro is available to support a postgraduate student. It also envisaged that at least one more IRCSET (or other independently) funded student will join the group. Ideally (but not necessarily), the postdoc candidate will have training in applied mathematical analysis. An interest in wave propagation and scattering would also be an advantage. Therefore, candidates from physics and engineering are also welcome to apply. A summary of the research proposal is given below. For further details, please contact Cliff Nolan by sending e-mail to clifford.nolan@ul.ie University of Limerick is located centrally in the Republic of Ireland. An excellent summary of practical details of living in Ireland can be found at the following link http://old.emigrant.ie/living/ It is a little out of date (still uses Irish Pounds instead of Euro, but it is still a good reference). The positions are open to Non-EU citizens but work permits will take longer to obtain. Project summary: Ultrasound images are a familiar sight to us all, especially those depicting the form of an unborn child in a mother's womb. To make such images, ultrasonic waves are emitted from a transducer on the surface of the mother's stomach. The sound waves travel inside, scatter from the baby and return to the transducer where they are measured. A simple time of flight to depth calculation indicates the location of various features of the baby and the image is displayed. By accounting for the waveform of the scattered waves, we will employ microlocal analysis to qualitatively improve images (in real time). We will employ complimentary modalities for imaging, such as electromagnetic, elastic and RADAR. Electromagnetic waves are useful for imaging imperfections in silicon wafers. Radio waves employed by RADAR on-board satellites provide images of moving or stationary objects on the earth. This information can be used to monitor the health of a forest and evaluate its bio-mass. Elastic and RADAR waves can be used to detect buried hazardous waste. The above examples are unified by the fact that measurements of scattered waves may be approximated by an integral transform of coefficients (e.g. density) in the associated wave equation. The scattered waves can be pre-processed for imaging via microchips on the detectors. Mathematically, an image is a plot of the high-frequency component of such coefficients. Using microlocal and numerical analysis, we will develop asymptotic inversion formulae for the integral transforms and obtain imaging algorithms, to be implemented via software development. A more detailed description is available at www.ul.ie/nolanc/SFI.pdf ----------------------------- From: ceser_isder@yahoo.co.in Subject: Nomination for Editors - International Journal of Tomography Date: Sat, 10 Apr 2004 Nomination for Editors - International Journal of Tomography & Statistics (IJTS) Nominations are invited for Editor-in-Chief, Associate Editors, and Assistant Editors for the International Journal of Tomography & Statistics (IJTS). If you have someone in mind to serve as Editor-in-Chief, Associate Editors, and Assistant Editors (including yourself), please nominate the person and attach their CV. If you are nominating someone else, please consult with that person to make sure they would be willing. All the posts are of two years term with volunteer appointment policy. Also as per policy subscription of journal is required for all appointed. The IJTS ( http://www.geocities.com/ceser_isder/ijts1.html ) publishes refereed, well-written original research articles, and studies that describe the latest research and developments in computerized Tomography and Statistics. It also covers the many potential applications and connections to other areas of Science and technology such as the use and development of WAVELETS in signal and image processing & reconstructions, applications in computerized tomography, and inter-disciplinary nature of applications. Applications in signal and image processing with Fourier analysis or WAVELETS are particularly welcome. IJTS is published quarterly in March, June, September and December by "Indian Society for Development & Environment Research" ISDER ( http://www.geocities.com/ceser_isder ). Send the nominations with C.V. to: Dr. Tanuja Srivastava, Executive Editor IJTS, Department of Mathematics, Indian Institute of Technology, Roorkee-247667, INDIA e-mail: tanujfma@iitr.ernet.in, tanujfma@indiatimes.com ----------------------------- From: Romas Baronas Subject: Table of Contents: Nonlinear Analysis: Modelling and Control Date: Wed, 07 Apr 2004 Nonlinear Analysis: Modelling and Control 2004 Vol. 9, No. 1 Table of Contents Stabilization of Continuous-Time Adaptive Control Systems with Possible Input Saturation through a Controllable Modified Estimation Model M. De la Sen Numerical Analysis of Short Pulse Optical Parametric Amplification Using Type I Phase Matching A. Dement'ev, O.Vrublevskaja, V. Girdauskas, R. Kazragyte Modelling Light Transmission in a Fiber - Optical Reflection System V.Kleiza, J.Paukste, J.Verkelis Features and Partial Derivatives of Bertalanffy-Richards Growth Model in Forestry Y.C. Lei, S.Y. Zhang Determination of the Distribution of the Relaxation Times from Dielectric Spectra J.Macutkevic, J.Banys, A.Matulis Natural Convection Flow with Combined Buoyancy Effects Due to Thermal and Mass Diffusion in a Thermally Stratified Media S.C.Saha, M.A. Hossain Nonlinear Analysis: Modelling and Control, an official journal of the Lithuanian Association of Nonlinear Analysts (LANA), welcomes contributions from the international community. For a paper submission, please refer to http://www.mif.vu.lt/lana/nonlin A free on-line edition is available at: http://www.mif.vu.lt/lana/nonlin/issues.htm#iss91 Dr. Romas Baronas, secretary of "Nonlinear Analysis: Modelling and Control". E-mail: romas.baronas@maf.vu.lt http://www.mif.vu.lt/lana/nonlin ----------------------------- From: Hans Schneider Subject: LAA contents Date: Fri, 9 Apr 2004 10:46:09 -0500 (CDT) Linear Algebra and its Applications May 1 2004 Volume 382 Table of Contents Spectral problems for generalized Jacobi matrices Maxim Derevyagin and Vladimir Derkach Uniformly symmetrizable 3 x 3 matrices Lorenzo Mencherini and Sergio Spagnolo About two trigonometric matrices G. Molteni Confluent polynomial Vandermonde-like matrices: displacement structures, inversion formulas and fast algorithm Zheng-Hong Yang and Yong-Jian Hu On the solution space of discrete time AR-representations over a finite time horizon N. P. Karampetakis Caratheodory Fejer interpolation in the ball with mixed derivatives D. Alpay and C. Dubi Customizable triangular factorizations of matrices Pengwei Hao Numerical range circumscribed by two polygons Hwa-Long Gau and Pei Yuan Wu Non-separating cocircuits in binary matroids Manoel Lemos Groups of generalized Pascal matrices Luis Verde-Star Computing the automorphism group of a solvable Lie algebra Bettina Eick Dispersion matrix in balanced mixed ANOVA models Jiming Jiang Isolated points of spectrum of (p,k)-quasihyponormal operators Kotaro Tanahashi, Atsushi Uchiyama, and Muneo Ch An elementary note on asymptotic properties of Toeplitz and multilevel Toeplitz matrices William F. Trench Jordan elementary maps on rings Pengtong Li and Wu Jing Burnside's theorem: irreducible pairs of transformations W. E. Longstaff A note on the structure of algebraic curvature tensors J. Carlos Diaz-Ramos and Eduardo Garcia-Rio http://www.sciencedirect.com/science/issue/5653-2004-996179999-493382 Submitted by: Hans Schneider Mathematics Department Van Vleck Hall Office Phone: 608-262-1402 University of Wisconsin Math Dept Phone: 608-263-3054 480 Lincoln Drive Math Dept Fax: 608-263-8891 Madison, WI 53706-1313 USA Email: hans@math.wisc,edu http://www.math.wisc.edu/~hans ------- end -------