IPNet Digest Volume 11, Number 01 January 31, 2004 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: British one-day Workshop on Inverse Problems Workshop SIAM Conference on Imaging Science IFIP TC 7 Conference on System Modeling and Optimization Intl. Conference of Numerical Analysis and Applied Mathematics 2004 SIAM Annual Meeting 2004 SIAM Conference on Partial Differential Equations Intl. Symposium on Mathematical Theory of Networks and Systems Summer School: Math. Geophysics and Uncertainty in Earth Models Postdoctoral Position: Signal Processing and Modeling Tenure-Track Positions: Math/Comp Finance; Algebra, Analysis Table of Contents: Inverse Problems Table of Contents: Electronic Trans. on Numerical Analysis 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: Bill Lionheart Subject: British one-day Workshop on Inverse Problems Workshop, March 8th 2004 Date: Wed, 14 Jan 2004 The British Inverse Problems Society will be holding the next British one-day Workshop on Inverse Problems Workshop (supported by the London Mathematical Society) on Monday, March 8th 2004, at the Department of Mathematics, University of Manchester Institute of Science and Technology (UMIST). The programme will be announced on the web site http://www.ma.umist.ac.uk/bl/ukipws . Bill Lionheart Department of Mathematics, UMIST Bill.Lionheart@umist.ac.uk ----------------------------- From: Connie Young Subject: SIAM Conference on Imaging Science (IS04) Date: Thu, 08 Jan 2004 SIAM Conference on Imaging Science (IS04) May 3-5, 2004 Marriott City Center, Salt Lake City, Utah Sponsored by the SIAM Activity Group on Imaging Science The program schedule is now available http://www.siam.org/meetings/is04/. Sponsored by the SIAM Activity Group on Imaging Science (SIAG/IS) ABOUT THE CONFERENCE Current developments in the technology of imaging have led to an explosive growth in the interdisciplinary field of imaging science. With the advent of new devices capable of seeing objects and structures not previously imagined, the reach of science and medicine has been extended in a multitude of different ways. The impact of this technology has been to generate new challenges associated with the problems of formation, acquisition, compression, transmission, and analysis of images. By their very nature, these challenges cut across the disciplines of physics, engineering, mathematics, biology, medicine, and statistics. While the primary purpose of this conference is to focus on mathematical issues, the biomedical aspects of imaging will also play an important role. PROGRAM COMMITTEE CO-CHAIRS Chris Johnson, University of Utah Ross Whitaker, University of Utah INVITED SPEAKERS (partial list) Peter Basser, National Institutes of Health Gadiel Seroussi, Hewlett Packard Albert Tarantola, Institut de Physique du Globe de Paris, France Arthur Toga, University of California, Los Angeles Brian Wandell, Stanford University CONFERENCE THEMES * Image acquisition * Image reconstruction and restoration * Image storage, compression, and retrieval * Image coding and transmission * PDEs in image filtering and processing * Image registration and warping * Image modeling and analysis * Statistical aspects of imaging * Wavelets and multiscale analysis * Multidimensional imaging sciences * Inverse problems in imaging sciences * Mathematics of visualization * Biomedical imaging * Applications http://www.siam.org/meetings/is04/ ----------------------------- From: Luciano Pandolfi Subject: IFIP TC 7 Conference on System Modeling and Optimization Date: Fri, 16 Jan 2004 The 22nd IFIP TC 7 Conference on System Modeling and Optimization will be held in Turin, Italy, July 18-22, 2005. Regularly updated information on the conference (invited sessions, deadlines etc.) can be found in the WEB page of the conference http://www.polito.it/ifip2005 A short description of the topics of the conference is below. Interested people are invited to submit abstracts at the address of the conference ifip2005@polito.it Information on the format required for the abstract can be found at the web page of the conference. THEMES AND SCOPE OF THE CONFERENCE Mathematical models methods and algorithms in optimization, identification, simulation and their applications: Optimization; optimization with PDE constraints; structural systems optimization; algorithms for linear and nonlinear programming; stochastic optimization; control and game theory; combinatorial and discrete optimization. Identification and inverse problems; fault detection; shape identification. Complex systems; stability and sensitivity analysis; neural networks; fractal and chaos; reliability. computational techniques in distributed systems and in information processing environments; transmission of information in complex systems; data base design. Applications of optimization techniques and of computational methods to scientific and technological areas (such as medicine, biology, economics, finances, aerospace and aeronautics etc.) are very welcome. Local organizing committee: L. Pandolfi (chair), F. Fagnani (cochair), A. Bacciotti, F. Ceragioli Submitted by: Luciano Pandolfi tel +39 011 5647516, FAX +39 011 5647599 http://calvino.polito.it/~lucipan/ Dipartimento di Matematica, Corso Duca degli Abruzzi 24, 10129 Torino, ITALY ----------------------------- From: "Theodore Simos" Subject: Intl. Conference of Numerical Analysis and Applied Mathematics Date: Sat, 06 Dec 2003 FIRST ANNOUNCEMENT AND CALL FOR PAPERS International Conference of Numerical Analysis and Applied Mathematics 2004 (ICNAAM 2004) Chalkis , Greece , 10-14 September 2004. URL address: http://www.uop.gr/~icnaam/ The aim of ICNAAM 2004 is to bring together leading scientists of the international Numerical & Applied Mathematics community and to attract original research papers of very high quality. The topics to be covered include (but are not limited to): All the research areas of Numerical Analysis and Computational Mathematics and all the research areas of Applied Mathematics (see http://www.uop.gr/~icnaam/res8/aimscope.htm). Chairmen and Organisers Dr. T.E. Simos, Active Member of the European Academy of Sciences and Arts and Corresponding Member of the European Academy of Sciences, Department of Computer Science and Technology, Faculty of Sciences and Technology, University of Peloponnese, Greece and Dr. Ch. Tsitouras , Technological Educational Institute of Chalkis, Greece. Vice-Chairman: Dr. G. Psihoyios, Anglia Polytechnic University , Cambridge , UK. Scientific Committee Prof. G. vanden Berghe, Belgium, Prof. P. E. Bjorstad, Norway, Prof. J. Cash, UK, Prof. R. Cools, Belgium, Prof. A. Cuyt, Belgium, Prof. B. Fischer, Germany, Prof. R. W. Freund, USA, Prof. I. Gladwell, USA, Prof. B. Hendrickson, USA, Prof. A. Klar, Germany, Prof. W. F. Mitchell, USA, Dr. T.E. Simos, Greece, Prof. W.Sproessig, Germany, Dr. Ch. Tsitouras, Greece, Prof. G. Alistair Watson, UK. Proceedings: Extended abstracts will be published in a Special Volume of Wiley-VCH. The journals in which selected Proceedings of ICNAAM 2004 will be published are: (i) Applied Numerical Analysis and Computational Mathematics (ANACM) (Wiley-VCH). This is the official journal of European Academy of Computational Methods in Sciences and Engineering and (ii) Mathematical Methods in the Applied Sciences (Wiley & Sons). Call for Sessions Workshops and Minisymposia: We invite proposals for Sessions, Workshops or Minisymposia. Each session should have at least 6 paper presentations. For this session the organiser or his team can have at most 2 papers. Each workshop or minisymposium should have at least 8 paper presentations. For this workshop or minisymposium the organiser or his team can have at most 2 papers. The Session, Workshop or Minisymposium organizer will be responsible for advertising the workshop, reviewing and selecting the papers. The Session organisers will have free registration in ICNAAM 2004. The Workshop or Minisymposium organizers will have free registration and a participation in the Accommodation. Papers accepted for Sessions, Workshops or Minisymposia will be published in the Proceedings of ICNAAM 2004. After the Conference the papers presented at the Sessions, Workshops or Minisymposia will be considered for publication in the appropriate journals. Submission of Proposals Proposals to organize Sessions, Workshops or Minisymposia should include the following information: Title of the workshop name, affiliation, mailing address and e-mail address of the proposer(s) description of the topic of the session (not exceeding 100 words) a short description on how the session will be advertised. The deadline for proposal submission is January 15, 2004. Please send your proposal to icnaam@uop.gr Contact information: Secretary ICNAAM, E-mail: icnaam@uop.gr, Postal Address: 26 Menelaou Street, Amfithea Paleon Faliron, GR-175 64, Athens, Greece, Fax: +30210 94 20 091 ----------------------------- From: Connie Young Subject: 2004 SIAM Annual Meeting - Submission Deadlines Date: Mon, 08 Dec 2003 The submission deadlines for the 2004 SIAM Annual Meeting are fast approaching! Go to http://www.siam.org/meetings/AN04/ to submit. MEETING DATES AND LOCATION: July 12-16, 2004, Portland, Oregon SUBMISSION DEADLINES Minisymposium proposals: December 16, 2003 Minisymposium abstracts and contributed abstracts: January 13, 2004 Contributed papers in lecture (or poster) format: January 13, 2004 INVITED PLENARY SPEAKERS (partial list) Alexandre Chorin, University of California, Berkeley Leah Edelstein-Keshet*, University of British Columbia, Canada Tom Grandine, The Boeing Company Yannis Kevrekidis, Princeton University George Oster*, University of California, Berkeley *Joint speakers with the SIAM Life Sciences Conference http://www.siam.org/meetings/LS04/ THE I.E. BLOCK COMMUNITY LECTURER Michael B. Ray, ExxonMobil Upstream Research Company "Mathematical Challenges in the Upstream Energy Business" ORGANIZING COMMITTEE John Bell (Co-chair), Lawrence Berkeley National Laboratory Steve Cox, Rice University Clint Dawson, University of Texas, Austin John Dennis (Co-chair), Rice University George Karniadakis, Brown University Dianne O'Leary, University of Maryland, College Park Linda Petzold, University of California, Santa Barbara Mary Pugh, University of Toronto, Canada Greg Shubin, The Boeing Company For more information visit http://www.siam.org/meetings/AN04/ ----------------------------- From: "Darrell Ross" Subject: 2004 SIAM Conference on Partial Differential Equations (PD04) Date: Tue, 20 Jan 2004 SIAM Conference on Partial Differential Equations December 6-8, 2004 Houston at Post Oak Doubletree Hotel Houston, Texas http://www.siam.org/meetings/pd04/ The SIAM Conference on Partial Differential Equations is now accepting abstracts! This is the first conference organized by the recently formed SIAM Activities Group on Analysis of Partial Differential Equations. There will be nine, one hour, plenary lectures, as well as minisymposia and contributed talks. All researchers in Partial Differential Equations are encouraged to participate, especially those whose interests lie at the intersection of Analysis and Applications. Younger researchers are especially welcome to participate. Limited funding is available for graduate students and recent PhDs. The Call for Presentations for this conference is now available at: http://www.siam.org/meetings/pd04/ For additional information, contact SIAM Conference Department at meetings@siam.org ----------------------------- From: ida Subject: MTSN 2004 Update Date: Thu, 18 Dec 2003 16th International Symposium on Mathematical Theory of Networks and Systems(MTNS 2004) Katholieke Universiteit Leuven (K.U.Leuven-Belgium), July 5-9, 2004 http://www.mtns2004.be ( !! on-line registration and submission possible !! ) MTNS is one of the main conferences in the general area of mathematical systems and control theory. The symposium is interdisciplinary and is aimed at mathematicians, engineers and researchers interested in any aspect of systems theory. MTNS is usually organized every two years and traditionally covers areas involving a wide range of research directions in mathematical systems, networks and control theory. MTNS 2004 will be held on the campus of the Katholieke Universiteit Leuven (K.U.Leuven - Belgium) in July 2004. The symposium program will include plenary and semi-plenary lectures, mini-symposia, mini-courses, contributed papers. More information: info@mtns2004.be or at the conference secretariat : Ida Tassens, ida.tassens@esat.kuleuven.ac.be Bart Motmans, bart.motmans@esat.kuleuven.ac.be ESAT-SCD, K.U.Leuven Kasteelpark Arenberg 10 B-3001 Leuven Belgium T: +32-(0)16321709 F: +32-(0)16321970 Bart De Moor, K.U.Leuven (Chair) Vincent Blondel, U.C.L (co-Chair) Paul Van Dooren, U.C.L. (co-Chair) Jan Willems, K.U.Leuven (co-Chair) ----------------------------- From: Roel Snieder Subject: Summer School on Mathematical Geophysics and Uncertainty in Earth Models Date: Thu, 22 Jan 2004 Announcement !! REGISTRATION DEADLINE, February 6, 2004 !! Summer School on Mathematical Geophysics and Uncertainty in Earth Models June 14-25, 2004 Colorado School of Mines, Golden, Colorado Scope of the School The goal of this interdisciplinary school is to expose graduate students and researchers from mathematics and geophysics to key issues in mathematical modeling and uncertainty analysis in geophysics. The program includes tutorials as well as presentations on current research that are of academic and industrial interest. The school will also define collaborative research directions between mathematics and the geosciences in the quantification of uncertainty in geophysical imaging and inversion. The summer school is financially supported by the program for Collaborations in Mathematical Geosciences (CMG) of the National Science Foundation. Topics of the School Lectures on inverse problems, statistical inference, optimization, numerical modeling in geophysics, wave propagation, seismological imaging, and reservoir simulation. Presentations include current research in regularization of inverse problems, theory and applications of optimization, uncertainty analysis in seismological imaging, and physical constraints on inverse problems. A visit to the visualization center of the National Center of Atmospheric Research and a local geological field trip are part of the program. Target Audience The school will bring together graduate students, post-docs, and senior researchers in mathematics or the geosciences. For logistic reasons the number of participants is limited. About 40 students may receive financial support to attend the school. Speakers will be by invitation only. There will be an opportunity to present research through poster presentations. Selection criteria Because of logistic reasons, the number of participants is limited. Priority is given to students or researchers that display an interest in interdisciplinary work as evidenced by current research or by a statement of research goals. In the admission to the school, and the selection for financial support, the organizing committee will pay special attention to the participation of underrepresented groups as defined by race, gender, or other criteria. Organizing Committee - Roel Snieder (Colorado School of Mines) - Luis Tenorio (Colorado School of Mines) - Eldad Haber (Emory University) - Alberto Malinverno (Schlumberger-Doll Research) - Mike Ritzwoller (University of Colorado at Boulder) Speakers - Brian Borchers (New Mexico Tech) - Chris Farmer (Schlumberger Abingdon Technology Centre) - Omar Ghattas (Carnegie Mellon University) - Alexandra Newman (Colorado School of Mines) - Doug Oldenburg (University of British Columbia) - Malcolm Sambridge (Australian National University) - Philip Stark (University of California at Berkeley) - Terry Young (Colorado School of Mines) - Brian Kennett (Australian National University) - Anthony Dahlen (Princeton University) - Alan Levander (Rice University) - Henning Omre (Norwegian University for Science and Technology) - George Papanicolaou (Stanford University) - John Scales (Colorado School of Mines) - Bill Symes (Rice University) - Jeannot Trampert (Utrecht University) For more information and registration visit: http://www.mines.edu/outreach/cont_ed/summerschool/uncertainty.html A pdf-file with the colour-version of the flyer can be downloaded from: http://www.mines.edu/~rsnieder/summer_school_flyer.pdf Contact person: Roel Snieder, rsnieder@mines.edu Submitted by: Prof. R.K. Snieder, Dept. of Geophysics, Colorado School of Mines, Golden CO 80401-1887, USA tel. +1-303-273.3456 (or 384.2178), fax +1-303-273.3478 http://www.mines.edu/~rsnieder email rsnieder@mines.edu ----------------------------- From: Eric Miller Subject: Postdoctoral Opening in Signal Processing and Modeling Date: Thu, 29 Jan 2004 Postdoctoral Opening in Physics-based Signal Processing and Modeling It is anticipated that a postdoctoral position in signal processing and modeling for buried object classification will be available in the Department of Electrical and Computer Engineering at Northeastern University in Boston MA USA starting in the late spring or early summer of 2004. The ideal candidate will have a PhD in an area such as electrical engineering, physics, or applied mathematics with experience in algorithms development as well as experimental data collection and processing. The project will be funded by the Strategic Environmental Research and Development Program (SERDP) and involves a collaboration among researchers from Northeastern University, ALPHATECH Inc (Burlington MA), Johns Hopkins Applied Physics Laboratory (Laurel MD) and Geophex Inc, (Raleigh NC). The primary objective is the development, validation, and transition into practice of physics-based algorithms for the classification of buried unexploded ordnance from electromagnetic induction data. The responsibilities of the job being advertised here will include work in sensor modeling, experimental data collection, as well as the development and field-data validation of algorithms for classifying buried objects. Issues of sensor optimization may also be addressed. Because the successful candidate will interact closely with all member of the team, both verbal and written English communications skills are a priority. The project is expected to last three years. Appointment for this job will be on a year-by year basis. For more information about this position, please contact Prof. Eric Miller Dept. of Electrical and Computer Engineering 315 Stearns Center Northeastern University 360 Huntington Ave Boston MA 02115 email: elmiller@ece.neu.edu Web: http://www.ece.neu.edu/faculty/elmiller/elmhome/ Interested candidates should provide (preferably via email) Prof. Miller with a copy of their CV, list of references, and copies of relevant articles, theses, technical reports etc. ----------------------------- From: Chuck Gartland Subject: Faculty Position in Math/Comp Finance at Kent State University Date: Fri, 9 Jan 2004 Kent State University Department of Mathematical Sciences Kent, OH 44242 Tenure-Track Positions in Mathematics We invite applications for one tenure-track position in applied mathematics in the areas of financial mathematics or computational finance and one or more tenure-track positions (pending budget approval) in mathematics in the areas of algebra or analysis. The appointments are to be at the Assistant Professor level and are to begin August 16, 2004. Candidates are required to have a Ph.D. within the mathematical sciences and preference will be given to candidates with some postdoctoral experience. They are expected to have strong potential in research (including the potential to attract external funding) and in teaching. They should be able to contribute to the interdisciplinary outreach of the department or to support established research strengths. The successful candidate for the applied mathematics position will be expected to contribute to and help develop our highly-rated, cross-disciplinary Master's program in Financial Engineering (http://business.kent.edu/msfe) and should have a background in financial mathematics and/or computational finance. Desirable research areas include, but are not limited to, theoretical or computational aspects of differential equations (stochastic or deterministic), statistical modeling, optimization, and wavelet analysis. Candidates in algebra or analysis should have a background that complements or broadens our existing strengths in these areas. Kent State University is a spacious, residential campus serving more than 24,000 students. It is situated in a small university town within 30 miles of the major metropolitan area of Cleveland, Ohio. The Department of Mathematical Sciences is in the College of Arts and Sciences and houses programs through the doctoral level in pure and applied mathematics. There are currently 24 tenure-track or tenured faculty. For further information about the department, please visit the website (http://www.math.kent.edu). Applicants should send a cover letter, a curriculum vitae, and at least three letters of reference to the Mathematics Search Committee at the above address. Applicants are also requested to use the AMS standardized application format, forms for which are available through the American Mathematical Society (http://www.ams.org). Questions regarding these positions may be sent to math-search@math.kent.edu. Applicants whose completed applications are received by January 20, 2004, are assured of receiving full consideration. Kent State University is an Equal Opportunity, Affirmative Action Employer. ----------------------------- From: "Elizabeth Martin" Subject: Contents list for Inverse Problems Date: Mon, 12 Jan 2004 Inverse Problems February 2004 Volume 20, Issue 1 Table of Contents All articles are free for 30 days after publication on the web. This issue is available at: http://stacks.iop.org/0266-5611/20/i=1 PAPERS Recovery of the Lam\'e parameter $\mu$ in biological tissues L Ji and J R McLaughlin Unique identifiability of elastic parameters from time-dependent interior displacement measurement J R McLaughlin and J-R Yoon Logarithmic stability estimates for a Robin coefficient in two-dimensional Laplace inverse problems S Chaabane, I Fellah, M Jaoua and J Leblond The role of single orbits in dynamics G Bozis and C Blaga Phase contrast tomography using holographic measurements P Jonas and A K Louis A unified treatment of some iterative algorithms in signal processing and image reconstruction C Byrne Blind deconvolution of bar code signals S Esedoglu An inverse problem originating from magnetohydrodynamics A S Demidov and M Moussaoui Isospectral circular membranes H P W Gottlieb Why linear sampling works T Arens A noise property analysis of single-photon emission computed tomography data J-P Guillement and R G Novikov An application of shape optimization in the solution of inverse acoustic scattering problems G R Feij\'oo, A A Oberai and P M Pinsky A method to construct refracting profiles N Alamo and C Criado Reconstruction from ray integrals with sources on a curve V P Palamodov Single-sided focusing and the minimum principle of inverse scattering theory J H Rose Levenberg--Marquardt level set methods for inverse obstacle problems M Burger Elastic modulus imaging: on the uniqueness and nonuniqueness of the elastography inverse problem in two dimensions P E Barbone and N H Gokhale An extension of the Toda lattice: a direct and inverse spectral transform connected with orthogonal rational functions J Coussement and W Van Assche Submitted by: Elizabeth Martin, Senior Production Editor Inverse Problems Institute of Physics Publishing Dirac House, Temple Back, Bristol BS1 6BE UK Tel: +44 (0)117 929 7481 E-mail: liz.martin@iop.org Fax: +44 (0)117 929 4318 WWW: http://www.iop.org ----------------------------- From: Lothar Reichel Subject: Table of Contents, ETNA vol 16, 2003 Date: Mon, 19 Jan 2004 Electronic Transactions on Numerical Analysis 2003 Volume 16 Table of Contents Preconditioning strategies for 2D finite difference matrix sequences Stefano Serra Capizzano and Cristina Tablino Possio Vaidya's preconditioners: implementation and experimental study Doron Chen and Sivan Toledo General theorems for numerical approximation of stochastic processes on the Hilbert Space Henri Schurz A fast algorithm for filtering and wavelet decomposition on the sphere Martin Bohme and Daniel Potts A rational spectral problem in fluid-solid vibration Heinrich Voss A parameter choice method for Tikhonov regularization Limin Wu A block version of BiCGStab for linear systems with multiple right-hand sides A. El Guennouni, K. Jbilou, and H. Sadok A quadrature formula of rational type for integrands with one endpoint singularity J. Illa'n Analysis of two-dimensional FETI-DP preconditioners by the standard additive Schwarz framework S. C. Brenner Gradient method with dynamical retards for large-scale optimization problems F. Luengo and M. Raydan ETNA is available at http://etna.mcs.kent.edu and at several mirror sites, as well as on CDROM. ETNA is in the extended Science Citation Index and the CompuMath Citation Index. ----------------------------- From: Hans Schneider Subject: LAA contents Date: Wed, 31 Dec 2003 Linear Algebra and its Applications February 2004 Volume 378 Table of Contents Fitting conics of specific types to data Yves Nievergelt Minimal and systematic convolutional codes over finite Abelian groups Fabio Fagnani and Sandro Zampieri On the normal matrix of the polynomial LS problem over the Chebyshev points Paolo Pugliese Surface volumes of rounding polytopes Mathias Drton and Udo Schwingenschlogl A note on 2-local automorphisms of digraph algebras Jinhai Xie and Fangyan Lu A rank theorem for Vandermonde matrices Pascal Koiran, Natacha Portier and Gilles Villard >From linear algebra via affine algebra to projective algebra Wolfgang Bertram On the convergence and optimization of the Baker-Campbell-Hausdorff formula Sergio Blanes and Fernando Casas A lower bound for the minimum eigenvalue of the Hadamard product of matrices Shencan Chen Cases of equality for certain inequalities involving a G-doubly stochastic map Marek Niezgoda Perturbation of eigenvalues for periodic matrix pairs via the Bauer-Fike theorems EricKing-wah Chu and Wen-Wei Lin Perturbed cones for analysis of uncertain multi-criteria optimization problems L. Kozeratska, J. F. Forbes, R. G. Goebel and J. V. Kresta The Schur complements of generalized doubly diagonally dominant matrices Jianzhou Liu, Yunqing Huang and Fuzhen Zhang Comparison and aggregation of max-plus linear systems James Ledoux and Laurent Truffet Irreducible groups with submultiplicative spectrum Marjeta Kramar Componentwise pseudospectrum of a matrix A. N. Malyshev and M. Sadkane Call for Papers: Special Issue in honor of Pauline van den Driessche Call for Papers: Special Issue in honor of Professor Ingram Olkin http://www.sciencedirect.com/science/issue/5653-2004-996219999-475426 These papers and over 80 articles in press for LAA are now available at http://www.sciencedirect.com/ . Submitted by: Hans Schneider Mathematics Department, Van Vleck Hall, University of Wisconsin, 480 Lincoln Drive, Madison, WI 53706-1313 USA Email: hans@math.wiscedu Office Phone: 608-262-1402 http://www.math.wisc.edu/~hans Math Dept Phone: 608-263-3054 Math Dept Fax: 608-263-8891 ------- end -------