IPNet Digest Volume 9, Number 03 March 31, 2002 Today's Editor: Patricia K. Lamm Michigan State University Today's Topics: Inverse Problems Workshop at Leeds Imaging Scientist Position at Bio-Imaging Research, Inc. LAA Special Issue on Eigenvalue Accuracy 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: L Daniel Subject: Inverse problems workshop at Leeds Date: Mon, 4 Mar 2002 An "Inverse Problems Workshop" will be held in the School of Mathematics at the University of Leeds on Monday afternoon on 15 April 2002. Programme: 1.30 - 2.15: G. Bastay and V. Kozlov (Linkoping, Sweden) "Iterative methods for solving Cauchy problems for PDEs". 2.15 - 2.45: T. Johansson (Linkoping, Sweden) "Reconstruction of a stationary flow from boundary data". 2.45 - 3.00: Tea/coffee break. 3.00 - 3.30: B.D. Sleeman (Leeds, UK) "The linear sampling method and an approximation property in inverse scattering theory". 3.30 - 4.00: M. Soleimani (UMIST,UK) "Shape and conductivity reconstruction in EIT". 4.00 - 4.45: R.M. West (Leeds, UK) "Markov Chains Monte Carlo (MCMC) procedures for inverse problems". The talks will be held in Classroom J in the School of Mathematics. If you intend to come to Leeds University by car, then in the week-end prior to the meeting, please e-mail me with your car registration number such that car parking facilities can be arranged. As the timetable is fairly compacted it is hoped that as many as possible will try to arrive between 12 and 12.30, that will enable us to go collectively to the bar or cafeteria (now merged) in the Senior Common Room and discuss matters informally. Like the car parking, could those that wish to follow this procedure please notify me accordingly. Daniel Lesnic Department of Applied Mathematics, University of Leeds, Leeds LS2 9JT, UK. tel: +44-(0)113-2335181. e-mail: amt5ld@amsta.leeds.ac.uk ----------------------------- From: "Marie Dunk" Subject: Position Available: Imaging Scientist Date: Thu, 21 Mar 2002 POSITION: Imaging Scientist LOCATION: Bio-Imaging Research, Inc. Lincolnshire, IL (suburban Chicago) Bio-Imaging Research is looking for an applied mathematician with an understanding and mastery of mathematical methods related to signal processing and image restoration. Areas of interest are sampling theory, transformation theory form Fourier to Radon to wavelets, and numerical methods in general. The candidate must have the ability to translate abstract mathematical concepts into terms easily understood by physicists, engineers and other mere mortals. The ideal candidate will be an applied mathematician to help us with all the new reconstruction algorithms and image quality issues. Current team members already have the practical CT experience. Their backgrounds are primarily physics and experience with previous generations of CT-scanners. We want to add someone with a more mathematical point-of-view. This could be a soon-to-be PhD, new PhD or a few years past PhD. The candidate chosen will be a member of a small, dedicated team of imaging scientists located at Bio-Imaging with partners in academia and industry. We are located about 30 miles north, northwest of downtown Chicago in an area known for excellent schools and recreational opportunities along with all of the cultural activities (theatres, symphonies, operas, museums) of a major metropolitan area. BIR's work has a direct impact on the world in which we live. Our award winning team of innovative specialists work in a friendly environment. BIR Management recognizes that our employees are the most valuable assets, and it shows. We offer a very generous benefits package, including: Medical Dental Vision Life insurance Long & short term disability 401(k) with 50% employer match for the first 6% ESOP 15 vacation days 12 paid holidays 10 days sick pay 2 personal days CONTACT: Marie Dunk Manager, Human Resources Phone: 847-634-6425 x128 Fax: 847-634-6440 E-mail: mdunk@birinc.com Please reference job code: WS118 ----------------------------- From: Jesse Barlow Subject: LAA Special Issue on Eigenvalue Accuracy Date: Fri, 1 Mar 2002 13:53:11 Special Issue of Linear Algebra and Its Applications Accurate Solution of Eigenvalue Problems III In the last 15 years, there have been a number of advances in the accurate solution of eigenvalue problems. Well known advances includes fast and more accurate methods for solving the symmetric tridiagonal eigenproblem, more accurate methods for computing the singular value decomposition, and further understanding of the conditioning theory of the non-symmetric eigenvalue problem. To recognize these advances and to encourage further advances, we are proposing to have a special issue of Linear Algebra and Its Applications on Accurate Solution of Eigenvalue Problems. So far, we have completed one special issue (vol. 309) on this problem area and a second one is pending. Since both of these issues received a number of strong submissions, we expect that the same for the third special issue. This special issue is in coordination with the International Workshop on Accurate Solution of Eigenvalue Problems IV to be held in Split, Croatia on June 24--27, 2002. The participants in the workshop will be strongly encouraged to submit papers to the special issue. Submissions are welcome from non--participants as long as they are consistent with the themes of the workshop. The editors for this special issue will be Jesse L. Barlow Department of Computer Science and Engineering The Pennsylvania State University University Park, PA 16802--6106 Beresford N. Parlett Department of Mathematics University of California at Berkeley Berkeley, CA 94720 Kresimir Veselic' Fernuniversitaet Hagen Lehrgebeit Math. Physik Postfach 940 5800 Hagen, Germany Manuscripts submitted to this special issue will be refereed according to standard procedures for Linear Algebra and Its Applications. The deadline for submissions will be January 15, 2003. ----------------------------- From: "Janet Thomas" Subject: Contents list for Inverse Problems issue 2 Date: Wed, 20 Mar 2002 Inverse Problems April 2002 Volume 18, Issue 2 Table of Contents LETTER TO THE EDITOR Information complexity-based regularization parameter selection for solution of ill conditioned inverse problems A M Urmanov, A V Gribok, H Bozdogan, J W Hines and R E Uhrig PAPERS Sensitivity analysis of a nonlinear inversion method for 3D electromagnetic imaging in anisotropic media O Dorn, H Bertete-Aguirre, J G Berryman and G C Papanicolaou Upper and lower estimates in determining point sources in a wave equation V Komornik and M Yamamoto Dirac type and canonical systems: spectral and Weyl--Titchmarsh matrix functions, direct and inverse problems A Sakhnovich Solving the dynamical inverse problem for the Schr\"odinger equation by the boundary control method S Avdonin, S Lenhart and V Protopopescu A new treatment of the inverse problem of multivariate analysis F Greensite A steepest descent algorithm for the global minimization of the Tikhonov functional R Ramlau On proving integrability P H van der Kamp An inverse problem in diffractive optics: conditional stability G Bruckner, J Cheng and M Yamamoto A regularized extraction formula in the enclosure method M Ikehata Iterative oblique projection onto convex sets and the split feasibility problem C Byrne An affine inverse eigenvalue problem S Elhay and Y M Ram Time-domain direct and inverse scattering for bi-anisotropic slabs at oblique incidence S Rikte The contrast source inversion method for location and shape reconstructions A Abubakar and P M van den Berg 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 WWW: http://www.iop.org ----------------------------- From: Hans Schneider Subject: LAA contents Date: Fri, 29 Mar 2002 Linear Algebra and its Applications May 2002 Vol. 346, Issue 1-3 Table of Contents An algorithmic version of the theorem by Latimer and MacDuffee for 2x2 integral matrices A. Behn, A.B. Van der Merwe On the nonlinear matrix equation X+A^*F(X)A=Q: solutions and perturbation theory A.C.M. Ran, M.C.B. Reurings Global reduction to the Kronecker canonical form of a C^r-family of time-invariant linear systems X. Puerta, F. Puerta, J. Ferrer Convexity and the separability problem of quantum mechanical density matrices A.O. Pittenger, M.H. Rubin More on matrix semigroup homomorphisms D. Kokol-Bukovsek Pole-shifting for linear systems over commutative rings M. Carriegos, J.A. Hermida-Alonso, T. Sanchez-Giralda Maximal graphs and graphs with maximal spectral radius D.D. Olesky, A. Roy, P. van den Driessche Obtaining simultaneous solutions of linear subsystems of inequalities and duals E. Castillo, F. Jubete, R.E. Pruneda, C. Solares On matrix differential equations and abstract FG algorithm M. Przybylska A polynomial fit preconditioner for band Toeplitz matrices in image reconstruction P. Favati, G. Lotti, O. Menchi Coherence invariant mappings on block triangular matrix spaces W.L. Chooi, M.H. Lim A boundary Nevanlinna-Pick problem for a class of analytic matrix-valued functions in the unit ball V. Bolotnikov Irreducible, pattern k-potent ray pattern matrices J.L. Stuart, L. Beasley, B. Shader On block completion problems for Arov-normalized j"q"q-J"q-elementary factors B. Fritzsche, B. Kirstein, M. Mosch 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 No Home FAX at present Madison WI 53706 USA http://www.math.wisc.edu/~hans (URL) ------- end -------