61. Research Activities, July 1, 1951 - June 30, 1952 Herstein located and translated a paper by helmut wielandt of the University of Mainz giving a concise treatment of the properties of such matrices. http://cowles.econ.yale.edu/reports/20yr/research.htm

A Twenty Year Research Report Research Activities, July 1, 1951-June 30, 1952 Formulation of individual and social objectives The pursuit of given objectives under certainty The pursuit of given objectives under uncertainty The study of actual economic behavior ... Concepts and tools of research Economics is both a descriptive and a prescriptive science. In a descriptive sense the economist studies the actual economic behavior of individuals and firms, singly or in groups, in a given environment. The prescriptive side of economics has two parts: the evaluation and selection of the most desirable social and economic objectives from among all those possible, and the evaluation and selection of the most effective means for achieving chosen objectives. Cowles Commission research of the past year has contributed to both these areas of economics. Essential to the establishment of a prescriptive science is the delineation of objectives and their formulation in precise terms. Part of the work of the Commission, reported in Section 1 below, has been concerned with this task. Sections 2 and 3, on the other hand, report on theoretical studies of the Commission which assume some individual or social objective as given and evaluate the effectiveness of different forms of behavior or organization in accomplishing that objective under a variety of circumstances. 1. Formulation of individual and social objectives

62. NA Digest, V. 02, # 31 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.netlib.org/netlib/na-digest-html/02/v02n31.html

NA Digest Sunday, August 4, 2002 Volume 02 : Issue 31 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Change of Address for S. S. Sritharan MIT Conference on Computational Fluid and Solid Mechanics Workshop at Exeter on Trefftz Methods and FEM for CFD Pacific Northwest Numerical Analysis Seminar ... Contents, Constructive Approximation Subscribe, unsubscripe, change address, or for na-digest archives: http://www.netlib.org/na-net Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information via e-mail about NA-NET: Mail to na.help@na-net.ornl.gov. Date: Wed, 31 Jul 2002 15:56:21 -0700 Subject: Change of Address for S. S. Sritharan My new coordinates from August 2002: S. S. Sritharan Head, Department of Mathematics University of Wyoming Laramie, WY 82071 Office phone : (307) 766-4221, Office Fax: (307) 766-6838. Date: Wed, 31 Jul 2002 20:08:10 +0300 Subject: MIT Conference on Computational Fluid and Solid Mechanics C A L L F O R P A P E R S FOR THE SESSION PRECONDITIONED ITERATIVE METHODS AND ALGORITHMS

63. NA Digest, V. 00, # 09 and helmut wielandt. From SIAM montgomery@siam.org Date Wed, 23 Feb 2000 144409 0500 Subject SIAM Outreach Membership http://www.netlib.org/netlib/na-digest-html/00/v00n09.html

NA Digest Sunday, February 27, 2000 Volume 00 : Issue 09 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Solving Delay Differential Equations in MATLAB Seeking Linear Algebra Memorabilia SIAM Outreach Membership Conference on the 40th Anniversary of the Journal BIT ... Special Issue of Linear Algebra and its Applications Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. URL for the World Wide Web: http://www.netlib.org/na-net/na_home.html Date: Tue, 22 Feb 2000 14:43:54 -0600 Subject: Solving Delay Differential Equations in MATLAB SOLVING DELAY DIFFERENTIAL EQUATIONS IN MATLAB We have developed a MATLAB program, dde23, that solves delay differential equations with constant delays. It is a very capable solver that is exceptionally easy to use. The program and supporting material are found at http://www.runet.edu/~thompson/webddes/. Included are a tutorial on using dde23, a manuscript containing technical details, and a manuscript and a link about event location. All

64. The Approximate Solution Of Matrix Problems 27 helmut wielandt, Unzerlegbare nichtnegative Matrizen. Math. Z. 52 (1950), 64248. 28 DAVID YOUNG, Iterative methods for solving partial dlfference http://portal.acm.org/citation.cfm?id=320932.320933

65. Person Helmut Wielandt http://www.lrz-muenchen.de/~Sommerfeld/PersDat/04486.html

Person: Helmut Wielandt Personen Wissenschaft Jahre Druckwerke ... Institutionen

66. © 1998-2004 Sommerfeld-Projekt. Ausgelesen Am 07. März 2004 wielandt, helmut (*1910); Wilson, W.-Quantum http://www.lrz-muenchen.de/~Sommerfeld/BriefDat/04765.html

Archiv: (Archiv NL 89, 010) Stichworte Personen: Wissenschaft: Reihen: Comptes Rendus; Erkenntnis; Reviews of Modern Physics Publizieren Institution: Start Biographie Projekt Online-Suche

67. Matematici S-Z wielandt, helmut (Niedereggenen, http://encyclopedie-it.snyke.com/articles/matematici_s_z.html

Matematici S-Z Elenco in ordine alfabetico limitato alle iniziali S, T, ... e Z delle maggiori personalit  della matematica Vedi Matematici con iniziale A B C D ... Z Saranno disponibili anche elenchi di matematici in ordine cronologico S Saccheri, Giovanni Girolamo ( San Remo 5 settembre Milano 28 ottobre ... Sacrobosco, Giovanni di i.e. John of Holywood (Holywood, Yorkshire, Inghilterra Parigi Saint-Venant, Adh©mar de (Villiers-en-Bi¨re, Senna e Marna Seine-et-Marne Francia 23 agosto - St Ouen, Loir-et-Cher Francia 6 gennaio Saint-Vincent, Gregorius (Bruges, Belgio, 8 settembre - Gand, Belgio 27 gennaio Saks, Stanislaw (Kalisz, Polonia 30 dicembre Varsavia Polonia ... 23 novembre Sansone, Giovanni ( Porto Empedocle Firenze Saradha, K. ( India Saradha, Natarajan ( India Sarrus, Pierre Frederic ( Francia Satge, Philippe ( Francia Sato, Mikio ( Giappone Premio Schock Sce, Michele ( Tirano Sondrio Milano Schiaparelli, Giovanni Virgilio ( Savigliano Cuneo 14 marzo Milano ... Padova Schl¤fli, Ludwig ( Svizzera Berna Svizzera Schmidt, Erhard (Dorpat, Germania i.e. Tartu Estonia 13 gennaio Berlino ... 6 dicembre Sch¶nflies, Arthur Moritz (Landsberg an der Warthe, Germania i.e. Gorz³w

68. FindArticles In American Mathematical Monthly, The: Dec 1997 by Ostebee, Arnold; helmut wielandt Mathematische Werke, Mathematical Works. Volume 2 Linear Algebra and Analysis by Ostebee, Arnold; Indiscrete Thoughts http://www.findarticles.com/p/articles/mi_qa3742/is_199712

@import url(/css/us/style1.css); @import url(/css/us/searchResult1.css); @import url(/css/us/articles.css); @import url(/css/us/artHome1.css); Advanced Search Home Help IN free articles only all articles this publication 10,000,000 articles - not found on any other search engine. FindArticles American Mathematical Monthly, The Save a personal copy of any page on the Web and quickly find it again with Furl.net. Get started now. (It's free.) Articles in Dec 1997 issue of American Mathematical Monthly, The Integrable Systems and Foliations: Feuilletages et Systemes Integrables by Ostebee, Arnold Numerical Methods in Smog Prediction by Ostebee, Arnold Legacy of Norbert Wiener: A Centennial Symposium, The by Ostebee, Arnold Ordinary Differential Equations and Smooth Dynamical Systems by Ostebee, Arnold Discrete Gambling and Stochastic Games by Vessey, Theodore A Lectures in Real Geometry by Ostebee, Arnold Proceedings of the Norbert Wiener Centenary Congress, 1994 by Ostebee, Arnold Linear and Nonlinear Perturbations of the Operator by Ostebee, Arnold Population Biology: Concepts and Models by Ostebee, Arnold

69. T.Kouya S Bibliography -% % Copyright (c) 2002- 2005 @article{wielandt, author = helmut wielandt , title = Das Iterationsverfahren bei nicht selbstadjungierten linearen Eigenwetaufgaben , journal = Math. http://na-inet.jp/na/tkouya.bib

70. Ilia Ponomarenko Address PETERSBURG DEPARTMENT Of VA STEKLOV helmut wielandt. My main research interests are within Algebraic Combinatorics and Computational Complexity. This includes) http://www.pdmi.ras.ru/~inp/

Ilia Ponomarenko Address: PETERSBURG DEPARTMENT of V. A. STEKLOV INSTITUTE of MATHEMATICS 27, Fontanka, St. Petersburg 191023, RUSSIA Phone: Fax: E-Mail: inp@pdmi.ras.ru Home Page: http://www.pdmi.ras.ru/~inp About: I graduated Leningrad State University, Department of Mathematics and Mechanics, in 1979. I received a PhD in Mathematics from Leningrad Department of V.A. Steklov Institute of Mathematics under the supervision of Prof. Dima Grigoriev in 1986. My thesis was about the Graph Isomorphism Problem. Since 1990 I am senior researcher at Laboratory of Representation Theory and Computational Mathematics of Petersburg Department of V.A. Steklov Institute of Mathematics. Research: William Burnside Ferdinand Georg Frobenius Issai Schur Helmut Wielandt My main research interests are within Algebraic Combinatorics and Computational Complexity. This includes:) Association shemes (see Introduction to Association Schemes by J. Seidel) The Graph Isomorphism Problem (see HANDBOOK OF COMBINATORICS, Chapter 27, Automorphism Groups, Isomorphism, Reconstruction by L. Babai

71. Geschichte Der Mathematik- Biographien Translate this page wielandt, helmut geb. 19.12.1910 in Niedereggenen, Lörrach, gest. 14 Feb 2001, http//www-history.mcs.st-andrews.ac.uk/history/Mathematicians/wielandt.html http://www.schule-bw.de/unterricht/faecher/mathematik/projekt_berichte/biographi

Aktuelles Lehrkräfte Unterricht Fächer / Fächerverbünde ... /Biographien Biographien von Mathematikerinnen und Mathematikern Bedeutende Mathematikerinnen und Mathematiker: Alphabet. Namensverzeichnis mit direkten Links zu biographischen Informationen ( englisch) http://www-history.mcs.st-andrews.ac.uk/history/Indexes/Full_Alph.html (MacTutor History of Mathematics archive: School of Mathematics and Statistics / University of St Andrews, Scotland) Karte mit Geburtsorten http://www-history.mcs.st-andrews.ac.uk/history/BirthplaceMaps/MapIndex.html http://turnbull.dcs.st-and.ac.uk/history/BirthplaceMaps/Places/Germany.html (in Deutschland) Mathematikerinnen: Namensverzeichnisse und Links zu Biographien http://turnbull.dcs.st-and.ac.uk/history/Indexes/Women.html http://www.agnesscott.edu/lriddle/women/women.htm (Agnes Scott College, in Atlanta, Georgia) Internet-Projekt (im Entstehen) http://www.mathe.tu-freiberg.de/~hebisch/cafe/projbio1.html Lebensdaten und Kurzbiographien Mathematiker (alphabet. Namenslisten) http://www.mathe.tu-freiberg.de/~hebisch/cafe/lebensdaten.html www.zahlenjagd.at/mathematiker.html Geschichte der Mathematik: Linksammlung http://www.mathe.tu-freiberg.de/matheakademie/schlinks/history.html

72. Citebase - On The Automorphism Tower Of Free Nilpotent Groups helmut wielandt, Eine verallgemeinerung der invarianten untergruppen, Math. Z. 45 (1939), 209244. Top 5 Articles Citing this Article (explain?) http://citebase.eprints.org/cgi-bin/citations?id=oai:arXiv.org:math/0311488

73. Citebase - Bell's Inequalities And The Accardi-Gustafson Inequality Commentary onTopics in the Analytic Theory of Matrices, Section 23, Singular angles of a square matrix, in Collected Works of helmut wielandt, vol. 2, eds. http://citebase.eprints.org/cgi-bin/citations?id=oai:arXiv.org:quant-ph/0205013

74. Mathematicians During The Third Reich And World War II wielandt, helmut 1941 engaged in research in meteorology, cryptology, aerodynamics; 1942 Kaiser Wilhelm Institue and Aerodynamics Research Institute at http://www5.in.tum.de/~huckle/mathwar.html

Mathematicians during the Third Reich and World War II Prof. Thomas Huckle huckle@in.tum.de Last modified: March/12/2004 Died Imprisoned Hidden Emigration ... General Information Died: Berwald, Ludwig: Dismissed 1939 in Prague; Deportation by Gestapo to Lodz where he died in April 1942. Blumenthal, Otto: [SCHAPPACHER, SIEGMUND,PINL] dismissed 1939 from Aachen and - for a short while - kept in "protective custody". Editor of 'Mathematische Annalen' until 1938. In 1939 he went to Holland. When the Netherlands had fallen, he refused the help of Dutch friends and was deported to Theresienstadt where he died 1944. Cavailles, Jean: [MENZLER-TROTT] Member of the resistance. Killed by the Gestapo 1944. See also Dickstein, Samuel: Died in the Nazi bombing of Warsaw in 1939. Epstein, Paul: [SIEGMUND, PINL] Frankfurt 1919 until 1935, suicide after summon from Gestapo August 1939. Froehlich, Walter: In 1939 dismissed in Prague, 1941 deported to Lodz and died there 1942. Hartogs, Fritz

75. Deutsche Mathematik Translate this page Ludwig Bieberbach. 3.3. Oswald Teichmüller. 3.4. Erhard Tornier. 3.5. helmut Hasse. 3.6. Wilhelm Süss. 3.7. helmut wielandt. 3.8. Gustav Doetsch. 4. Quellen http://www5.in.tum.de/lehre/seminare/math_nszeit/SS03/vortraege/de-math/

Sommersemester 2003 Deutsche Mathematik Nationalsozialismus und Mathematik Die DMV in der Zeit des Nationalsozialismus Was ist die DMV? Der Annalenstreit - DMV gegen Ende der Weimarer Republik ... Quellen 1. Nationalsozialismus und Mathematik "Der völkische Staat hat [...] seine gesamte Erziehungsarbeit in erster Linie nicht auf das Einpumpen bloßen Wissens einzustellen, sondern auf das Heranzüchten kerngesunder Körper. Erst in zweite Linie kommt dann die Ausbildung der geistigen Fähigkeiten. Hier aber wieder an der Spitze die Entwicklung des Charakters, besonders der Förderung der Willens- und Entschlusskraft, Verbunden mit der Erziehung zur Verantwortungsfreudigkeit und erst als Letztes die wissenschaftliche Schulung." (Hitler, Mein Kampf, 2.Band, München 1927, S.452) Dieses Zitat aus Hitlers "Mein Kampf" offenbart deutlich den Zwiespalt, in dem sich der Nationalsozialismus zur Mathematik und den Naturwissenschaften im Allgemeinen befand. Auf der einen Seite stand die ideologische Herabsetzung oder Verachtung von Wissenschaft und geistiger Bildung, da der nationalsozialistische Grundgedanke und die Weltanschauung größtenteils auf irrationalen Prinzipien beruhte und vor allem Anderen einen übersteigerten Körperkult pflegte. Andererseits sah sich das Regime in seinen politischen sowie vor allem militärischen Zielen und Planungen in einer unausweichlichen praktische Abhängigkeit von den Wissenschaften. Es war selbst für hartnäckige Ideologen unmöglich die Tatsche zu ignorieren, dass man in bestimmten Bereichen einfach auf die Mathematik angewiesen war.

76. CHINESE An, Ven F Cai, Shanghe Cai, Sui L Cai, Tian X Cao Wend WestphalSchmidt, U Wette, EW Wiegmann, Klaus W wielandt, helmut W Wiesend, Gotz E Wild, Marcel Wildeshaus, Joerg W Winckler, Michael J Winkelmann, http://www.cs.sunysb.edu/~algorith/biblio/testdata/people-names

77. Dissertationen In Mathematik, 1907-1944 Translate this page M, wielandt, helmut, Abschätzungen für den Grad einer Permutationsgruppe von vorgeschriebenem Transitivitätsgrad. Berlin, 08.02.1935, Algebra http://www.mathematik.uni-bielefeld.de/DMV/archiv/dissertationen/1935.html

Dissertationen in Mathematik, 1935 Renate Tobies, Kaiserslautern tobies@mathematik.uni-kl.de G Verfasser Titel Univers./TH Datum Gebiet Untergebiet Publiziert in Zeitschrift Land M Denffer, Herbert v. Berlin Analysis Partielle Differentialgleichungen Schriften d. Math. Sem. u. d. Inst. f. angew. Math. d. Univ. Berlin, 2 M Helmer-Hirschberg, Olaf Axiomatischer Aufbau der Geometrie in formalisierter Darstellung. Berlin Grundlagen Axiomatik Schriften d. Math. Sem. u. d. Inst. f. angew. Math. d. Univ. Berlin, 2 M Lohan, Ralf Berlin Anwendungen Mechanik Schriften d. Math. Sem. u. d. Inst. f. angew. Math. d. Univ. Berlin, 2 M Wielandt, Helmut Berlin Algebra Gruppentheorie Schriften d. Math. Sem. u. d. Inst. f. angew. Math. d. Univ. Berlin, 2 M Collatz, Lothar Berlin Anwendungen Numerische Methoden Schriften d. Math. Sem. u. d. Inst. f. angew. Math. d. Univ. Berlin, 3 M Molsen, Karl Berlin Algebra Schriften d. Math. Sem. u. d. Inst. f. angew. Math. d. Univ. Berlin, 3 M Knopfmacher, Walter Berlin TH Anwendungen Theoretische Physik W Schluckebier, Marie-Luise

78. DMV Translate this page wielandt, helmut (1910-2001), 103, 74-78. Wieleitner, Heinrich (1874- 1931), 42, 199-223 *. Wiener, Christian (1826-1896), 6, 46-69 http://www.mathematik.uni-bielefeld.de/DMV/archiv/nachr_u.html

Momentan ist die JavaScript-Funktion bei Ihrem Browser ausgeschaltet oder Math-Net Seite begeben. Nachrufe im Jahresbericht der DMV A B C D ... Z A Avakumovic, Vojislav G. (1910-1990) B Bachmann, Paul (1837-1920) Baier, Othmar (1905-1980) Bauer, Gustav (1820-1906) Beck, Hans (1876-1942) Bernstein, Felix (1878-1956) Bieberbach, Ludwig (1886-1982) Bilharz, Herbert (1910-1956) Bjerknes, Carl (1825-1903) Blaschke, Wilhelm (1885- 1962) Bobek, Karl (1855-1899) Boerner, Hermann (1906-1982) Bohl, Piers (1865-1921) Bohr, Harald (1887- 1951) Bolza, Oskar (1857 1942) Bopp, Karl (1877-1934) Bortolotti, Enea (1896-1942) Bos, Werner (1924-1973) Brandt, Heinrich (1886-1954) Brauer, Alfred (1894-1985) Brauer, Richard (1901-1977) Brunn, Hermann (1862-1939) Buka, Felix (1852-1896) Burkhardt, Heinrich (1861-1914) Burmester, Ludwig (1840-1927) Busche, Edmund (1861 1916) C Cantor, Georg (1845-1918) Caratheodory, Constantin (1873-1950) Caspar, Max (1880-1956)Nachtrag Caspary, Ferdinand (1853-1901) Curtze, Maximilian (1837-1903) Czuber, Emanuel (1851-1925) D Darboux, Gaston (1842-1917)

79. M. Stroppel: Literaturhinweise Zur Vorlesung "Gruppentheorie" Translate this page wielandt, helmut Finite Permutation Groups, Academic Press 1964, Zbl. 138.02501 Math. Rev. 32 1252. *, Zassenhaus, Hans The Theory of Groups, http://servix.mathematik.uni-stuttgart.de/~stroppel/litGrpTh.shtml

Markus Stroppel : Gruppentheorie (Vorlesung Sommer 2001) Literaturhinweise zur Vorlesung Gruppentheorie mit Links zum und zu den Mathematical Reviews (Die links funktionieren aber nur, wenn der entsprechende Server Sie als berechtigten Benutzer erkennt.) Die einzelnen Hinweise sind alphabetisch geordnet, dies ist keine Wertung. Die finden Sie hier Artin, Emil: Geometric Algebra , Interscience 1957 Zbl. 642.51001 Math. Rev. 18,553e Aschbacher, Michael: Finite group theory , Cambridge University Press 1986 Zbl. 583.20001 Math. Rev. 89b:20001 Infinite Abelian Groups, Vols. I/II , Academic Press 1970/73 Zbl. 209.05503 Zbl. 257.20035 Math. Rev. 41 #333 Math. Rev. 50 #2362 Gorenstein, Daniel: Finite Groups Zbl. 463.20012 Math. Rev. 38 #229 Hall, M.: The Theory of Groups , MacMillan 1959 Zbl. 084.02202 Math. Rev. 21#1996 Huppert, Bertram: Endliche Gruppen I , Springer 1967 Zbl. 217.07201 Math. Rev. 37,302 Huppert, Bertram; Blackburn, Norman: Finite Groups II/III , Springer 1967 Zbl. 477.20001 Zbl. 514.20002 Math. Rev. 84i:20001a Math. Rev. 84i:20001b Kurosh, A.G.: The Theory of Groups, Vols. I/II

80. Chronologie Du Calcul Scientifique helmut wielandt Calculateur électromécanique Harvard Mark-I de Howard Aiken (USA) http://gersoo.free.fr/calsci/history.html

Documents personnels Calcul Scientifique Editions MIR Informatique ... Grenier Chronologie de l'Informatique Scientifique l'Informatique Scientifique Nomenclature CAO, infographie Informatique, calcul intensif Programmation, calcul formel et symbolique Abaques chinois Publication de Liber Abaci Invention des logarithmes par John Napier de Merchiston Formule de Stirling-De Moivre pour le calcul des factorielles La Pascaline de Blaise Pascal Interpolation de Lagrange Introduction des nombres complexes par Caspar Wessel de Charles Babbage Machine Analytique Inventions des quaternions par William Rowan Hamilton steepest descent method ) par Augustin Louis Cauchy Utilisation des quaternions par Arthur Cayley pour les rotations dans l'espace Formule de Schwarz-Christofell pour les transformations conformes Equation de KdV de Diederik Korteweg et Gustav de Vries Premier algorithme de FFT par Carle David Tolme Runge Publication de Modular Equations and Approximations to delta-2 Sous-espaces de Alexei Nikolaevich Krylov Algorithme de Remes pour les approximations de Chebyshev Calculateur programmable Z3 de Konrad Zuse (Allemagne) Algorithme de FFT de Cornelius Lanczos et G.C. Danielson

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