21. --- NA Digest V. 01, #08 February 25, 2001 Volume 01 Issue 08 Today s Editor Cleve Moler The MathWorks, Inc. moler@mathworks.com Today s Topics helmut wielandt New Book, http://www.csc.fi/math_topics/Mail/NANET01-1/msg00143.html

Message Prev Message Next Message Index - NA Digest V. 01, #08 To : na-digest list: ; Subject : - NA Digest V. 01, #08 From moler@mathworks.com Date : Sun, 25 Feb 2001 13:35:26 -0500 Reply-To na.digest@na-net.ornl.gov http://www.netlib.org/na-net/na_home.html Prev by Message: Contents, Journal of Integral Equations and Applications Next by Message: Helmut Wielandt Index(es): Message

22. Earl R. Barnes - Mathematicians Of The African Diaspora wielandt, helmut Mathematische Werke/Mathematical works. Vol. 2. Linear algebra and analysis. With essays on some of wielandt s works by GP Barker, http://www.math.buffalo.edu/mad/PEEPS/barnes_earlr.html

Earl R. Barnes Born: 1942 Birthplace: South Carolina B.S. in (1964) in Mathematics Morgan State University Ph.D. in Mathematics from the University of Maryland in 1968 thesis: The Optimal Control of Systems with Distributed Parameters ; advisor: G. S. Jones Area of Research Interests: linear and nonlinear programming techniques, and graph theory : Professor of School of Industrial and Systems Engineering of Georgia Institute of Technology URL: http://www.isye.gatech.edu/people/faculty/Earl_Barnes/ email: ebarnes@isye.gatech.edu RESEARCH NOTES Dr. Barnes has published nearly 40 papers in Mathematics. In particular, he is interested in interior point methods for linear programming problems, and in nonlinear approaches to certain combinatorial optimization problems. More details can be obtained from his publication web page: http://www.isye.gatech.edu/people/faculty/Earl_Barnes/publications.html P UBLICATIONS BOOKS 1. Wielandt, Helmut Mathematische Werke/Mathematical works. Vol. 2. Linear algebra and analysis. With essays on some of Wielandt's works by G. P. Barker, E. R. Barnes

23. Diamond Theory References wielandt, helmut Finite permutation groups Academic Press, 1964 Cited by Griess and others. GROUP THEORY GENERALLY PAPERS Cameron, PJ, and Hall, http://m759.freeservers.com/refs.html

Diamond Theory Bibliography This list supplies bibliographic and other references for the Diamond Theory website. Contents: Group theory in general.... Books Papers Preprints/theses Websites Coding theory in general.... Books Papers Preprints/theses Websites Mathieu groups and Golay codes.... Books Papers Preprints/theses Websites Finite geometry.... Books Papers Preprints/theses Websites Combinatorial designs.... Books Papers Preprints/theses Websites Walsh functions.... Books Papers Preprints/theses Websites Symmetry in general.... Books Papers Preprints/theses Websites Aesthetics/Psychology of art.... Books Papers Preprints/theses Websites Tilings and graphic designs.... Books Papers Preprints/theses Websites Other.... Books Papers Preprints/theses Websites GROUP THEORY GENERALLY - BOOKS Sphere Packings .... Passman, D. S. Permutation groups Benjamin, 1968 From Biggs and White, 1979: "Most books on group theory contain an introduction to permutation groups, but there are few books wholly devoted to the subject. The two standard works are by Wielandt [1964] and Passman [1968]." Weyl, Hermann The classical groups Princeton U. Press, 1946 The "relativity problem" (coordinatizing a reference frame) appears on page 16. Wielandt, Helmut Finite permutation groups Academic Press, 1964 Cited by Griess and others. GROUP THEORY GENERALLY - PAPERS Cameron, P. J., and Hall, J. I. Some groups generated by transvection subgroups J. Algebra 140 (1991), 184-209 Cited by Cuypers and Steinbach in "Special linear groups generated by transvections...." http://www.win.tue.nl/~hansc/anja2403.pdf Held, Dieter A characterization of the alternating groups of degree 8 and 9 J. Alg. 31 (1974) 91-116 Cited by Griess in

24. Bibliography wielandt, helmut, 1910, Mathematische Werke = Mathematical works helmut wielandt / edited by Bertram Huppert and Hans Schneider, Berlin http://www.library.cornell.edu/math/bibliography/display.cgi?start=W&

25. Jahn, Helmut --  Encyclopædia Britannica Jahn, helmut With the opening in 2000 of the Sony Center in Berlin s Potsdamer Includes a photo gallery. helmut wielandt University of St.Andrews http://www.britannica.com/eb/article-9344987

Home Browse Newsletters Store ... Subscribe Already a member? Log in This Article's Table of Contents Jahn, Helmut Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products Jahn, Helmut  Encyclopædia Britannica Article Page 1 of 1 Jahn, Helmut... (75 of 515 words) var mm = [["Jan.","January"],["Feb.","February"],["Mar.","March"],["Apr.","April"],["May","May"],["June","June"],["July","July"],["Aug.","August"],["Sept.","September"],["Oct.","October"],["Nov.","November"],["Dec.","December"]]; To cite this page: MLA style: "Jahn, Helmut." Britannica Book of the Year, 2001 http://www.britannica.com/eb/article-9344987 APA style: Jahn, Helmut. ( Britannica Book of the Year, 2001

26. Niebuhr, Helmut Richard --  Britannica Student Encyclopedia Niebuhr, helmut Richard (1894–1962), US theologian and educator, born in Wright City, Mo.; brother of Reinhold helmut wielandt University of St.Andrews http://www.britannica.com/ebi/article-9331400

Home Browse Newsletters Store ... Subscribe Already a member? Log in This Article's Table of Contents Niebuhr, Helmut Richard Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products Niebuhr, Helmut Richard  Student Encyclopedia Article Page 1 of 1 Niebuhr, Helmut Richard... (75 of 80 words) var mm = [["Jan.","January"],["Feb.","February"],["Mar.","March"],["Apr.","April"],["May","May"],["June","June"],["July","July"],["Aug.","August"],["Sept.","September"],["Oct.","October"],["Nov.","November"],["Dec.","December"]]; To cite this page: MLA style: "Niebuhr, Helmut Richard." Britannica Student Encyclopedia http://www.britannica.com/ebi/article-9331400

27. Papers helmut wielandt s Contribution to the Numerical Solution of Complex Eigenvalue Problems in helmut wielandt, Mathematische Werke, Mathematical Works, Vol. http://www4.ncsu.edu/~ipsen/papers.html

Papers I.C.F. Ipsen: Accurate Eigenvalues for Fast Trains SIAM News , vol. 37, no. 9, pp 1-2 (2004) D.E. Finkel, C. Kuster, M. Lasater, R. Levy, J.P. Reese and I.C.F. Ipsen: Communicating Applied Mathematics: Four Examples I.C.F. Ipsen and S. Kirkland: Convergence Analysis of a PageRank Updating Algorithm by Langville and Meyer SIAM J. Matrix Anal. Appl. , to appear I.C.F. Ipsen and D.J. Lee: Determinant Approximations D.J. Lee and I.C.F. Ipsen: Zone Determinant Expansions for Nuclear Lattice Simulations Phys. Rev. C , vol. 68, pp 064003 (2003) I.C.F. Ipsen: A Note on Unifying Absolute and Relative Perturbation Bounds Linear Algebra Appl. , vol. 358, no. 1-3, pp 239-53 (2003) C. Beattie and I.C.F. Ipsen: Inclusion Regions for Matrix Eigenvalues Linear Algebra Appl. , vol. 358, no. 1-3, pp 281-91 (2003) I.C.F. Ipsen: Ritz Value Bounds that Exploit Quasi-Sparsity I.C.F. Ipsen: Departure from Normality and Eigenvalue Perturbation Bounds I.C.F. Ipsen: A Note on Preconditioning Non-Symmetric Matrices SIAM J. Sci. Comput. , vol. 23, no. 3, pp 1050-1 (2001)

28. American Mathematical Monthly, The: Helmut Wielandt: Mathematische Werke, Mathem Full text of the article, helmut wielandt Mathematische Werke, Mathematical Works. Volume 2 Linear Algebra and Analysis from American Mathematical http://www.24hourscholar.com/p/articles/mi_qa3742/is_199712/ai_n8780570

@import url(http://www.looksmartcollege.com/css/ubervert/style.css); @import url(http://www.looksmartcollege.com/css/ubervert/article.css); Home September 7, 2005 Search for in this site other sources Home American Mathematical Monthly, The Content provided in partnership with Find. Top publications by title Journal of Social Issues American Enterprise AI Magazine Art Forum ... view more titles Save. Save a copy of this page Print this page Share. Link to this page See most popular pages The definitive collection of idea generation methods Cheat Sheet Roundup - Over 30 Cheatsheets for developers PocketMod: The Free Disposable Personal Organizer dropload ... Windows XP Commands Helmut Wielandt: Mathematische Werke, Mathematical Works. Volume 2: Linear Algebra and Analysis American Mathematical Monthly, The , Dec 1997 by Ostebee, Arnold History, P. Helmut Wielandt: Mathematische Werke, Mathematical Works. Volume 2: Linear Algebra and Analysis. Eds: Bertram Huppert, Hans Schneider. Walter de Gruyter, 1996, xx + 802 pp, DM 348. [ISBN 3-11-012453-X] Advertisement About Us Terms of Service LookSmart Solutions: FindArticles Furl.net

29. From Owner-at-net-dl@math.uni-giessen.de Mon Sep 16 044831 2002 helmut wielandt 19 December 191014 February 2001 A personal memoir, Pages 1-3 Hans Schneider wielandt s proof of the exponent inequality for primitive http://www.math.ohio-state.edu/JAT/DATA/ATNET/114.fixed

* Linear Algebra and its Applications Volume 353, Issues 1-3, Pages 1-317 (15 September 2002) http://www.sciencedirect.com/science/issue/5653-2002-996469998-329855 TABLE OF CONTENTS Helmut Wielandt 19 December 1910-14 February 2001 A personal memoir, Pages 1-3 Hans Schneider Wielandt's proof of the exponent inequality for primitive nonnegative matrices, Pages 5-10 Hans Schneider The Laplacian spectrum of a mixed graph, Pages 11-20 Xiao-Dong Zhang and Jiong-Sheng Li Ranks and inertias of Hermitian block Toeplitz matrices, Pages 21-32 Jerome Dancis Kronecker product based stability tests and performance bounds for a class of 2D continuous-discrete linear systems, Pages 33-52 E. Rogers and D. H. Owens Transformation techniques towards the factorization of non-rational 2 x 2 matrix functions, Pages 53-90 Torsten Ehrhardt and Frank-Olme Speck Global stabilizability of uncertain systems with time-varying delays via dynamic observer-based output feedback, Pages 91-105 Yeong-Jeu Sun On a bitangential interpolation problem for contractive-valued functions on the unit ball, Pages 107-147 Joseph A. Ball and Vladimir Bolotnikov On the congruence of square real matrices, Pages 149-158 Dragomir . Dokovi and Khakim D. Ikramov The symmetric M-matrix and symmetric inverse M-matrix completion problems, Pages 159-168 Leslie Hogben Consistency for bi(skew)symmetric solutions to systems of generalized Sylvester equations over a finite central algebra, Pages 169-182 Qing-Wen Wang, Jian-Hua Sun and Shang-Zhi Li Stability of matrices with negative diagonal submatrices, Pages 183-196 Herman J. Nieuwenhuis and Lambert Schoonbeek Matricial realizations of the solutions of the Carlson problem, Pages 197-206 Albert Compta and Josep Ferrer Symmetry property and construction of wavelets with a general dilation matrix, Pages 207-225 Bin Han Cesaro limits of analytically perturbed stochastic matrices, Pages 227-243 Jerzy Filar, Henry A. Krieger and Zamir Syed On matrices which have signed null-spaces, Pages 245-255 Si-Ju Kim and Bryan L. Shader On comparison of the Perron-Frobenius eigenvalues of two ML-matrices, Pages 257-266 Bo Henry Lindqvist The generic canonical form of a regular structured matrix pencil, Pages 267-288 J. W. van der Woude Schur complements and its applications to symmetric nonnegative and Z-matrices, Pages 289-307 Yizheng Fan Special Issue on Order Reduction of Large Scale Systems, Pages 309-310 Special Issue in honor of Peter Lancaster, Page 311 Special Issue on Linear Algebra in Signal and Image Processing, Pages 313-314 Special issue on Large Scale Linear and Nonlinear Eigenvalue Problems, Pages 315-316 Author index, Page 317 This issue is now available on ScienceDirect. Ninth Special issue on Linear Algebra and Statistics Special editors: S. Puntanen, G.P.H. Styan, H.J. Werner TABLE OF CONTENTS Idempotency of linear combinations of an idempotent matrix and a tripotent matrix, Pages 21-34 Jerzy K. Baksalary, Oskar Maria Baksalary and George P. H. Styan A property of orthogonal projectors, Pages 35-39 Jerzy K. Baksalary, Oskar Maria Baksalary and Tomasz Szulc Generalized inverses of partitioned matrices in Banachiewicz-Schur form, Pages 41-47 Jerzy K. Baksalary and George P. H. Styan A complementary proof of an eigenvalue property in correspondence analysis, Pages 49-51 J. Benasseni Multi-companion matrices, Pages 53-83 Georgi N. Boshnakov Methods of density estimation on the Grassmann manifold, Pages 85-102 Yasuko Chikuse Operator trigonometry of statistics and econometrics, Pages 141-158 Karl Gustafson Several inequalities involving Khatri-Rao products of positive semidefinite matrices, Pages 175-186 Shuangzhe Liu Admissible linear estimators in linear models with respect to inequality constraints, Pages 187-194 Chang-Yu Lu and Ning-Zhong Shi Estimation and experiments comparison with respect to the matrix risk, Pages 213-222 Augustyn Markiewicz Third and fourth moment matrices of vec X' in multivariate analysis, Pages 223-229 Heinz Neudecker and Gotz Trenkler The 70th anniversary of the distribution of random matrices: A survey, Pages 231-243 Ingram Olkin The asymptotic variance of the univariate PLS estimator, Pages 245-253 A. Phatak, P. M. Reilly and A. Penlidis Regression models with unknown singular covariance matrix, Pages 255-273 Muni S. Srivastava and Dietrich von Rosen Convergence in the Cesaro sense and strong law of large numbers for nonhomogeneous Markov chains, Pages 275-288 Weiguo Yang Call for Papers, Pages 289-290 Author index, Page 291 +-+ 3) From: esaff@math.Vanderbilt.Edu Constructive Approximation Contents: Volume 18, No. 4, 2002 "Favard's Interpolation Problem in One or More Variables" by Thomas Kunkle, pp. 467-478. "Summation and Transformation Formulas for Elliptic Hypergeometric Series" by S.O. Warnaar, pp. 479-502. "On the L1-Condition Number of the Univariate Bernstein Basis" by Tom Lyche and Karl Scherer, pp. 503-528. "Universal Bases and Greedy Algorithms for Anisotropic Function Classes" by V.N. Temlyakov, pp. 529-550. "Best Polynomial Approximation in Sobolev-Laguerre and Sobolev- Legendre Spaces" by D.H. Kim, S.H. Kim, K.H. Kwon, and Xin Li, pp. 551-568. "Multivariate Simultaneous Approximation" by T. Bagby, L. Bos, and N. Levenberg, pp. 569-577. "The Saalschutz Chain Reaction and Bilateral Basic Hypergeometric Series" by Wenchang Chu, pp. 579-597. "Stability Analysis for Several Second-Order Sigma-Delta Methods of Coarse Quantization of Bandlimited Functions" by Ozgur Yilmaz, pp. 599-628 +-+ 4) From: Hans Schneider

30. UW ARMS - W-Z Biographical Files wielandt, helmut W. Wigner, Eugene P. Wikoff, Wallace. Wikoff, William H. (Major). Wilburn, Mary Nelson. Wilcots, Eric M. Wilcox, Calvin H. Wilcox, Emery http://archives.library.wisc.edu/files/biow-z.htm

Biographical Files - Names beginning with W, X, Y, and Z About the Archives Exhibits Highlighted Collections ... Site Map B134 Memorial Library 728 State Street Madison, WI 53706-1494 Phone (608) 262-5629 FAX (608) 265-2754 E-mail the University Archives Last updated: August 27, 2003 Originally published: March 2002 This page contains a list of biographical files for names begining with the letters W, X, Y, and Z. Use the following links to navigate to the section you need, or browse through the list. W Wa We Wh ... Zw W Wackman, Kenneth B. Waddington, Raymond B. Wade, Earl K. Wade, Irving K. Wadsworth, Kit Wagenknecht, A. C. Wagner, Barbara (Bobbie) Wagner, Eldon C. Wagner, George Wagner, Raphael D. Wahba, Grace Wahl, Eberhard W. Wahl, J. Richard Wahlin, Hugo B. Waisman, Harry A. Waite, Helen Wakefield, Howard E. Wakeley, Charles Wakeley, Eleazer Wakeman, Nellie A. Wakil, Salih J. Wald, George Wales, Julia Grace Wales, Michael Walker, Derek Walker, Elizabeth Walker, Gordon R.

31. Olga Taussky-Todd as an autonomous field by people such as the Todds, Alston Householder, Magnus Hestenes, Fritz Bauer, Ky Fan, Alexander Ostrowski, helmut wielandt. http://www.agnesscott.edu/lriddle/women/todd.htm

32. AMERICAN MATHEMATICAL MONTHLYOctober 2004 Potter, wielandt, and Drazin on the Matrix Equation AB = 8 BA New Answers to Old mathematical diaries of helmut wielandt we display a page dated 1951. http://www.maa.org/pubs/monthly_oct04_toc.html

Search MAA Online MAA Home MONTHLY, October 2004 Lost in a Forest by Steven R. Finch and John E. Wetzel Steven.Finch@inria.fr j-wetzel@uiuc.edu Fifty years ago, Richard Bellman posed an interesting search problem that can be phrased as follows: A hiker is lost in a forest whose shape and dimensions (but not its orientation) are precisely known to him. What is the best path for him to follow to escape from the forest? Construing “best” as meaning “shortest,” we survey what is known for regions of various shapes, we clarify the relationship with Leo Moser's well-known “worm” problem, and we consider some related questions. Potter, Wielandt, and Drazin on the Matrix Equation AB : New Answers to Old Questions by Olga Holtz, Volker Mehrmann, and Hans Schneider holtz@math.Berkeley.edu hans@math.wisc.edu mehrmann@math.TU-Berlin.de In this partly historical and partly research-oriented note, as part of our continuing examination of the unpublished mathematical diaries of Helmut Wielandt we display a page dated 1951. There he gives a new proof of a theorem due to H. S. A. Potter on the matrix equation AB BA , which is related to the q -binomial theorem, and asks some further questions, which we mostly answer. We also describe results by M. P. Drazin and others on this equation.

33. Topics Of Research wielandt, helmut Finite permutation groups. Translated from the German by R. Bercov Academic Press, New YorkLondon 1964 x+114 pp. http://www.sci.uidaho.edu/reu/program/research6.htm

University of Idaho REU in Discrete Mathematics June 1 - July 25, 2003 Main Page Announcement The Program The Environment ... Updates 6. Classification of Permutation Puzzles There are several books on permutation groups listed below however, none of them addresses classification problems of permutation puzzles. Cameron, Peter J. Permutation groups. London Mathematical Society Student Texts, 45. Cambridge University Press, Cambridge, 1999. x+220 pp. ISBN: 0-521-65302-9; 0-521-65378-9 Dixon, John D.; Mortimer, Brian Permutation groups. Graduate Texts in Mathematics, 163. Springer-Verlag, New York, 1996. xii+346 pp. ISBN: 0-387-94599-7 Passman, Donald Permutation groups. W. A. Benjamin, Inc., New York-Amsterdam 1968 ix+310 pp. Wielandt, Helmut Finite permutation groups. Translated from the German by R. Bercov Academic Press, New York-London 1964 x+114 pp. The students that have worked in this area are: Jonathan Bayless and Karen Kapur Relevant material is listed below: Friedman, Joel On Cayley graphs on the symmetric group generated by transpositions.

34. E-Optimization.com: Optimization Trailblazers: Alan Hoffman In my work with helmut wielandt, a visiting mathematician from Germany, we studied the question of eigenvalues as related to matrices and distances, http://www.e-optimization.com/directory/trailblazers/hoffman/linear_programming.

site exploration Optimization Trailblazers About Trailblazers Home Interview Introduction Getting Started in Optimization The Simplex Method and the National Bureau of Standards Solving the Tent Problem for the Army ... Looking Ahead Eigenvalues, the Duality Theorem, and Linear Programming ALAN : Alan Hoffman IRV : Irvin Lustig Video Excerpt IRV How did your work in linear programming influence you in other areas? ALAN I discovered that in addition to planning, there were two more ways in which linear programming was relevant. One had to do with an estimation of eigenvalues on matrices. In my work with Helmut Wielandt, a visiting mathematician from Germany, we studied the question of eigenvalues as related to matrices and distances, and we solved it using linear programming. Our theorem on the estimation of eigenvalues is called the Hoffman-Wielandt theorem. It was a thrill to me to see that linear programming could be applied to other parts of mathematics, including combinatorial problems, like the Konig-Egervary theorem. It was through this theorem, rather than through the diet problem, that I was able to understand duality. IRV George mentioned the diet problem in my interview with him as one of the first problems ever solved. Were there others?

35. Jakob Nielsen Papers wielandt, helmut 1 reprint. Wilbrandt, Günther 1 reprint. Winternitz, Artur 6 reprints. Winther, Chr. 2 reprints. Wittich, H. 1 reprint. http://www.math.ku.dk/arkivet/jnielsen/jnpapers.htm

THE ARCHIVE INSTITUTE FOR MATHEMATICAL SCIENCES THE UNIVERSITY OF COPENHAGEN The homepage of the archive List of collections Jakob Nielsen papers General, short description of the collection A short biography of Nielsen A survey of the content People from whom there is more than reprints ... Details about the content of some of the folders General, short description of the collection A short description: This collection of Jakob Nielsen papers consists mainly of reprints, which Nielsen has received from other scientists and sorted by authors. In addition to the reprints there is other material from some of the persons, i.e. letters, manuscripts, applications for positions etc. All the material is from the period around 1890-1959 and the reprints are in many different languages. However, the additional material is mainly in Danish or German. Size: The collection is contained in 79 archival boxes of which the first 25 are standard boxes while the rest are Nielsen's original boxes. Handed over: The collection was located in the basement of the mathematical library in the E block of the H. C. Ørsted Institute in the fall of 1996. It is not known when and how it was put here. Photocopies of material from the Staatsarchiv Hamburg was added to box 10 in July 1999.

36. Jakob Nielsen Papirer wielandt, helmut 1 særtryk. Wilbrandt, Günther 1 særtryk. Winternitz, Artur 6 særtryk. Winther, Chr. 2 særtryk. Wittich, H. 1 særtryk. http://www.math.ku.dk/arkivet/jnielsen/jnarkiv.htm

ARKIVET INSTITUT FOR MATEMATISKE FAG KØBENHAVNS UNIVERSITET Arkivets hjemmeside Samlingsoversigt Jakob Nielsen papirer Overordnet beskrivelse af samlingen Kort biografi Oversigt over indholdet Personer, hvorfra der er andet end særtryk ... Detaljeret om indholdet i enkelte mapper Overordnet beskrivelse af samlingen Kort beskrivelse: Denne samling af Jakob Nielsens papirer består for størstedelen af særtryk, som Nielsen har modtaget fra andre videnskabsfolk og sorteret efter forfatter. Udover særtrykkene er der i forbindelse med nogle af personerne breve, manuskripter, ansøgninger og andet. Alt materiale er fra ca. 1890-1959 og på en lang række sprog hvad angår særtrykkene. Det øvrige materiale er dog fortrinsvis på dansk eller tysk. Omfang: Samlingen omfatter 79 arkivkasser, hvoraf de første 25 er almindelige arkivkasser og resten er Nielsens originale kasser. Overdragelse: Samlingen befandt sig i Matematisk biblioteks kælder i E-bygningen på H. C. Ørsted Institutet i efteråret 1996. Det vides ikke, hvornår eller hvordan den er kommet der. I juli 1999 blev der tilføjet fotokopier af materiale fra Staatsarchiv Hamburg til box 10 Klausuler: Ingen.

37. Professional Opportunities featured a talk by Hans Schneider on helmut wielandt, who died last year. Schneider quoted from wielandt s inaugural address to the Heidelberg Academy http://www.siam.org/siamnews/12-02/householder.htm

search: From SIAM News, Volume 35, Number 10, December 2002 Householder Numerical Linear Algebra Symposium Meets in Peebles, Scotland Mark Embree The Edwardian charm of the Peebles Hotel Hydro in the Scottish Borders was the backdrop for the Fifteenth Householder Symposium on Numerical Linear Algebra, held June 10-14. The conference, which meets every three years, continues the tradition established by the Gatlinburg Symposia, originally organized by Alston Householder and held in the Great Smoky Mountains of Tennessee. A picture from an early symposium is immortalized in Matlab: load gatlin; image(X); colormap(map) The Householder Symposia are exceptional for their limited size (roughly 125 delegates) and remote location, intended to minimize distractions. Young researchers have ample opportunity to mix with leaders in the field, facilitated at this year's conference by random seating at lunch and dinner in the hotel dining room. The customary format consists of plenary talks during the day, followed by parallel sessions in the afternoon and evening. Lively exchanges during the talks are encouraged, although the audience was generally decorous at this year's meeting. Some Highlights The Householder meetings provide good vantage points for identifying research trends in numerical linear algebra. A visitor to the 1999 symposium in Whistler, British Columbia, for example, would have noticed an emphasis on model reduction of large-scale dynamical systems.

38. Reminiscences And Appreciation I can cite Eduard Stiefel, helmut wielandt, Alexander Ostrowski, and JM Synge. The division had an advisory committee among whose members Mina Rees and Marc http://www.siam.org/siamnews/07-01/todd.htm

search: Congrats, Jack! Reminiscences and Appreciation Philip J. Davis A two-day conference, Numerical Analysis, Linear Algebra and Computations, was held at the California Institute of Technology, May 16-17, to celebrate the 90th birthday of John Todd. Philip Davis, whose association with Todd dates back to the time just after World War II, looked back on those early days of computing and numerical analysis in the first invited talk at the conference. What follows is an adapted version of that talk. We gathered in Pasadena to honor a nonagenarian of international reputation who has devoted at least eighty of his ninety years to the cause of mathematics and to its applications. There is an old proverb that asks: "Who is honored?" The answer given is: "He who honors other people." So I was greatly honored by the opportunity to pay tribute to John Todd. It is by no means an easy matter to select out the high points of a long profes-sional career, but for this occasion it seemed important that I make the attempt. Jack Todd was born in 1911. He received his BSc at Queens College Belfast, Northern Ireland, in 1931. During World War II, he was with the Mine Design Department in Portsmouth, England, and later with the Admiralty Computing Service in London. In 1939, just before the war began, Jack and Olga Taussky were married. In 1946, he gave his first course in numerical mathematics at King's College London. In 1949, John Curtiss hired him to head the Computation Laboratory at the National Bureau of Standards (now NIST) in Washington, and from 1954 to 1957 he was chief of the Numerical Analysis Section. He moved to Caltech as a professor of mathematics in 1957 and has been there since that time.

39. Assessment Of Non-Coherent Light Sources For Photodynamic Therapy Assessment of NonCoherent Light Sources for Photodynamic Therapy Roy H. Pottiert, Eva F. Dicksont, Pierre Nadeaut, helmut wielandt, Kasimir Sosint, http://www.lumacare.com/paper12.htm

Published Papers Home Published Papers Home

40. Publications on the HoffmanWieland Inequality Special isuue of the Journa of Linear Algebra dedicated to helmut wielandt on his 65th Birthday, June 1996. http://www.isye.gatech.edu/people/faculty/Earl_Barnes/publications/

Professor Earl Barnes Publications Barnes, E. R., "Semidefinite Programming via the Simplex Algorithm" Submitted to Mathematics of Operations Research, March 1997. Barnes, E. R., "Bounds for the Largest Clique in a Graph" Submitted to Mathemtical Programming, February 1997. Castillo, I. and Barnes, E. R., "Chaotic Behavior of the Affine Scaling Algorithm" Submitted to SIAM Journal on Optimization, November 1996. Barnes, E. R., and Moretli, A., "A Method for Finding the Analytic Center of a Polytope" Accepted by Computationaly and Applied Mathematics, July, 1996. Barnes, E. R., "Commentary on the Hoffman-Wieland Inequality" Special isuue of the Journa of Linear Algebra dedicated to Helmut Wielandt on his 65th Birthday, June 1996. Barnes, E. R., "An Inequality for Probability Moments with Applications" SIAM Journal of Matrix Analysis and Applications, V. 8, N. 3, August 1995, pp. 1-13. Barnes, E. R., and Hoffman, A. J., "Bounds for the Spectrum of Normal Matrices," Journal of Linear Algebra and Applications, V. 201, 1994, pp. 79-90.

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