21. Johann Radon Institute For Computational And Applied Mathematics johann radon Institute for Computational and Applied Mathematics (RICAM), Austrian Academy of Sciences (–AW). Finite Fields, Number Theory, Coding Theory, Pseudorandom Numbers, Cryptology, Combinatorics. http://www.ricam.oeaw.ac.at/people/page/winterhof/personal.html

Johann Radon Institute for Computational and Applied Mathematics (RICAM) Austrian Academy of Sciences (ÖAW) Home People Research Groups and Topics ... Location/Contact Search Personal Links My bibliography MathSciNet Zentralblatt Math My lecture notes: Zahlentheoretische Methoden in der Kryptographie I Zahlentheoretische Methoden in der Kyptographie II Codierungstheorie ... Pseudozufallszahlen Number theory: Number theory web Random number generation: pLab Conferences: (March 1-4, Singapore) (June 7-10, Juan-les-Pins, Côte d'Azur, France Numbertheoretic Algorithms and Related Topics (September 27 - October 1, Strobl, Austria) (October 24-28, Seoul, Korea) Finite Fields: Theory and Applications December 5-11, Oberwolfach, Germany) WCC 2005 (March 14-18, 2005, Bergen, Norway) 16. ÖMG Kongress (September 18-23, Klagenfurt, Austria) Finite Fields and Applicatons (15-21 December 2005, Puerto Rico) Mathematical Societies DMV ÖMG This page is still under construction. The Institute is named after the famous Austrian mathematician Johann Radon View our server usage statistics This page was made with 100% valid HTML CSS - Send comments to Webmaster Today's date and time is 02/06/04 - 15:03 CET and this file ( /people/page/winterhof/personal.html ) was last modified on 02/06/04 - 15:03 CET

22. Radon, Johann Translate this page johann radon. Porträtbüste im Arkadenhof der Universität Wien. radon, johann, * 16. 12. 1887 Tetschen (Deutschlandecín, Tschechische Republik), † 25. 5. http://www.aeiou.at/aeiou.encyclop.r/r055363.htm

A B C D ... Radsport Radon, Johann Radon, Johann, * 16. 12. 1887 Tetschen ( Deutschland Tschechische Republik ), † 25. 5. 1956 Wien, Mathematiker. 1912-19 an der Technischen Hochschule in Wien, dann Herausgeber der "Monatshefte für Mathematik". Hinweise zum Lexikon Suche nach hierher verweisenden Seiten

23. AEIOU Seiten Mit Links Auf Translate this page AEIOU Seiten mit Links auf. radon, johann. Es wurden keine Verweise gefunden. Zurück zu radon, johann. http://www.aeiou.at/aeiou.encyclop.r/r055363.htm;internal&action=show_incoming_l

AEIOU Seiten mit Links auf Radon, Johann Es wurden keine Verweise gefunden. Zurück zu Radon, Johann

24. The Mathematics Genealogy Project - Johann Radon According to our current online database, johann radon has 2 students and 124 descendants. We welcome any additional information. http://www.genealogy.math.ndsu.nodak.edu/html/id.phtml?id=23830

25. The Mathematics Genealogy Project - Update Data For Johann Radon If you have Mathematics Subject Classifications to submit for an entire group of individuals (for instance all those that worked under a particular advisor) http://www.genealogy.math.ndsu.nodak.edu/html/php/submit-update.php?id=23830

26. Johann Radon Institute For Computational And Applied Mathematics (RICAM) Translate this page Jänner 2003 das johann radon Institut für Angewandte Mathematik in Linz. Das johann radon Institut führt Grundlagenforschung auf dem Gebiet der http://www.tn.jku.at/content/johannradoninstitut/index_ger.html

Printversion INHALT Dekanat Fakult¤t Studienleitung ... TNF : Johann Radon Institut Johann Radon Institute for Computational and Applied Mathematics (RICAM) Die –sterreichische Akademie der Wissenschaften er¶ffnete mit 1. J¤nner 2003 das Johann Radon Institut f¼r Angewandte Mathematik in Linz. "Mit diesem Institut werden die Aktivit¤ten im Bereich der anwendungsorientierten Grundlagenforschung auf eine l¤ngerfristige Basis gestellt", betont Prof. Dr. Werner Welzig, Pr¤sident der ¶sterreichischen Akademie der Wissenschaften, "F¼r die Leitung des Johann Radon Forschungsinstituts konnten wir Prof. Dr. Heinz Engl gewinnen. Er ist auch einer der international angesehensten Vertreter auf dem Gebiet der Industriemathematik." Das Johann Radon Institut f¼hrt Grundlagenforschung auf dem Gebiet der mathematischen Modellierung, Simulation und Optimierung komplexer Prozesse mit Anwendungen in Naturwissenschaften, Technik und Finanzwissenschaften durch. In seiner Arbeit wird das Institut auch stark international ausgerichtet sein. Es wird angestrebt, die weltweit besten Leute auf diesem Gebiet zumindest f¼r einige Zeit nach Linz zu holen und mit ausl¤ndischen Instituten „hnlicher Art zusammenzuarbeiten. Neben Prof. Heinz Engl als Direktor des Akademieinstitutes, der auch eine Abteilung f¼r "Inverse Probleme" leitet, ¼bernehmen die Linzer Professoren Bruno Buchberger, Ulrich Langer und Gerhard Larcher die Leitung weiterer Abteilungen. Unterst¼tzung aus Wien bekommt das Forschungsinstitut mit den Professoren Peter Markowich und Walter Schachermayer. Im Endausbau umfasst der Forschungsbetrieb des Johann Radon Institutes ¼ber 25 Postdoc-Stellen sowie 10 Stellen f¼r Gastwissenschafter. Mittelfristig sollen am Institut etwa 60 Personen arbeiten. Es handelt sich somit um eine GroŸforschungseinrichtung, die sich einer kontinuierlichen internationalen Evaluierung stellen wird. Ein international besetztes Kuratorium soll den guten Ruf der Linzer Angewandten Mathematik unterst¼tzen.

27. Johann Radon Institute For Computational And Applied Mathematics In Linz johann radon Institute for Computational and Applied Mathematics in Linz. http://www.it.lut.fi/mat/EcmiNL/ecmi33/node20.html

Johann Radon Institute for Computational and Applied Mathematics in Linz Starting Jan. 1, 2003, the Austrian Academy of Sciences has established a research institute named after the famous Austrian mathematician Johann Radon, whose name is e.g. connected with the Radon transform, Radon measures and the Radon-Nikodym Theorem. The institute will do research in five groups: Numerical Methods for Coupled Field Problems (Chair: Ulrich Langer) Inverse Problems (Chair: Heinz Engl) Symbolic Computation (Chair: Bruno Buchberger) Financial Mathematics (Chairs: Gerhard Larcher and Walter Schachermayer) Analysis of Partial Differential Equations (Chair: Peter Markowich). We negotiate with further high-profile mathematicians about leading additional groups. The institute is housed in Linz (on the university campus), Heinz Engl has been appointed director. In addition to its own research (which will partly be interdisciplinary between the groups mentioned), the institute will run "special semesters" on specific application areas of mathematics. Outside visitors will be a core part of these special programs. Suggestions for topics are welcome. If the budget develops as planned, the institute will have at least 25 postdoc positions plus about 10 positions for visitors. Currently, the first positions are advertised (see www.ricam.oeaw.ac.at). On this webpage, you can also find details about our research program. Heinz W. Engl

28. Radon: Definition And Much More From Answers.com radon is highly radioactive and has a short halflife. The chief use of radon is in the treatment of cancer by radiotherapy. See also. johann radon http://www.answers.com/topic/radon

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Dictionary Encyclopedia Science Medical WordNet Wikipedia Translations Best of Web Mentioned In Or search: - The Web - Images - News - Blogs - Shopping radon Dictionary ra·don rā dŏn n. Symbol Rn A colorless, radioactive, inert gaseous element formed by the radioactive decay of radium. It is used as a radiation source in radiotherapy and to produce neutrons for research. Its most stable isotope is Rn 222 with a half-life of 3.82 days. Atomic number 86; melting point −71°C; boiling point −61.8°C; specific gravity (solid) 4. RAD(IUM) –ON Encyclopedia radon rā dŏn ) , gaseous radioactive chemical element; symbol Rn; at. no. 86; mass no. of most stable isotope 222; m.p. about −71°C; b.p. −61.8°C; density 9.73 grams per liter at STP; valence usually 0. Radon is colorless and the most dense gas known. Chemically unreactive, it is classed as an inert gas in group of the periodic table . Synthesis of radon fluoride has been reported. Radon is highly radioactive and has a short half-life. The chief use of radon is in the treatment of cancer by radiotherapy. It has also found some use (mixed with beryllium) as a neutron source. All naturally occurring radon decays by the emission of alpha particles. The element is found in some spring waters, in streams, and to a very limited extent (about 1 part in 10 ) in air. Radon is produced by the disintegration of its precursors in minerals, from which it diffuses in small amounts. In homes and other buildings in some areas of the U.S., radon produced by the radioactive decay of uranium-238 present in soil and rock can reach levels regarded as dangerous, but the seriousness of the problem is unclear. Twenty isotopes of radon are known, but only three occur naturally. Radon-222 (half-life 3.82 days) is produced by the decay of radium-226. Radon-220 (half-life 55 sec), also called thoron, is produced in the decay series of

29. Radon Transform: Information From Answers.com radon transform In mathematics , the radon transform in two dimensions is the integral transform The radon Filtered back projection johann radon http://www.answers.com/topic/radon-transform

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Best of Web Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Radon transform Wikipedia Radon transform In mathematics , the Radon transform in two dimensions is the integral transform The Radon transform integrates a function over lines in the plane, mapping a function of position to a function of the slope and the y-intercept This transform in two dimensions and three dimensions (where a function is integrated over planes) was introduced in a 1917 paper by Johann Radon , who provided formulae for the inverse transform (reconstruction problem). It was later generalised, in the context of integral geometry A discrete Radon transform is a Hough transform The Radon transform is useful in computed axial tomography (CAT scan). In the 2D case is the 1D projection of f along the direction y m x and we want to reconstruct the 2D image f from all the 1D projections P m A less computationally-intensive algorithm for reconstructing from the sinogram is the filtered back-projection See also Tomographic reconstruction External link MathWorld page http://mathworld.wolfram.com/RadonTransform.html

30. A Defence Of Johann Radon (Radon Transform In Treatment Planning) A defence of johann radon (radon transform in treatment planning). JM Galvin and BE Bjarngard Dept. of Radiation Therapy, Harvard Medical School, Boston, http://www.iop.org/EJ/abstract/0031-9155/20/5/012

@import url(http://ej.iop.org/style/nu/EJ.css); Quick guide Site map Athens login IOP login: Password: Create account Alerts Contact us Journals Home ... This issue J M Galvin et al Phys. Med. Biol. CORRESPONDENCE A defence of Johann Radon (Radon transform in treatment planning) J M Galvin and B E Bjarngard Dept. of Radiation Therapy, Harvard Medical School, Boston, MA, USA Print publication: Issue 5 (September 1975) Abstract. In a recent paper by Friedman et al. (see ibid., vol.19, p.819 of 1974), a method is presented for evaluating the Radon transform (1917). It is felt that the impression is given that this particular reconstruction algorithm is difficult to use in practice and it is pointed out that this is not the case. doi:10.1088/0031-9155/20/5/012 URL: http://stacks.iop.org/0031-9155/20/839 PDF (213 KB) References Full text PDF (213 KB) References Article options E-mail abstract Download to citation manager Link to this article Information about Filing Cabinet Find related articles By author J M Galvin B E Bjarngard IOP CrossRef Search PubMed Recommend Recommend this article Recommend this journal Author services NEW ... Submit referee report Reasons to login Set up an E-mail alert Use your Filing Cabinet Login Previous article ... Help Biomedical Materials British Journal of Applied Physics (1950-1967) Chinese Physics Chinese Physics Letters Classical and Quantum Gravity Clinical Physics and Physiological Measurement (1980-1992) Combustion Theory and Modelling (1997-2004) Distributed Systems Engineering (1994-1999) European Journal of Physics

31. Radon-Nikodym Theorem -- Facts, Info, And Encyclopedia Article The theorem is named for (Click link for more info and facts about johann radon) johann radon, who proved the theorem for the special case where the http://www.absoluteastronomy.com/encyclopedia/r/ra/radon-nikodym_theorem1.htm

Radon-Nikodym theorem [Categories: Theorems, Measure theory] In (A science (or group of related sciences) dealing with the logic of quantity and shape and arrangement) mathematics , the Radon-Nikodym theorem is a result in (Click link for more info and facts about functional analysis) functional analysis that states that if a (How much there is of something that you can quantify) measure Q is (Click link for more info and facts about absolutely continuous) absolutely continuous with respect to another (Click link for more info and facts about sigma-finite measure) sigma-finite measure P then there is a (Click link for more info and facts about measurable function) measurable function f for any measurable set A The function f is defined up to a (A set that is empty; a set with no members) null set , that is: if g satisfies the same property, then f=g (Click link for more info and facts about almost everywhere) almost everywhere . It is commonly written dQ dP and is called the Radon-Nikodym derivative . The choice of notation and the name of the function reflects the fact that the function is analogous to a ((linguistics) a word that is derived from another word) derivative in (A hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body)

32. Radon-Nikodym Theorem Function Measure Derivative Set Space The theorem is named for johann radonjohann radon ( December 16, 1887 May 25, 1956) was a mathematician born in Litomerice in Bohemia (now Czech Republic). http://www.economicexpert.com/a/Radon:Nikodym:theorem.html

var GLB_RIS='http://www.economicexpert.com';var GLB_RIR='/cincshared/external';var GLB_MMS='http://www.economicexpert.com';var GLB_MIR='/site/image';GLB_MML='/'; document.write(''); document.write(''); document.write(''); document.write(''); A1('s',':','html'); Non User A B C ... Home In mathematics , the Radon-Nikodym theorem is a result in functional analysis that states that if a measure Q is absolutely continuous with respect to another sigma-finite measure P then there is a measurable function f for any measurable set A The function f is defined up to a null set , that is: if g satisfies the same property, then f=g almost everywhere . It is commonly written dQ dP and is called the Radon-Nikodym derivative . The choice of notation and the name of the function reflects the fact that the function is analogous to a derivative in calculus in the sense that it describes the rate of change of density of one measure with respect to another. It follows trivially from the definition of the derivative that, when P and Q are probability measures over the probability space , and X is a random variable then where E is the expectation operator . When X is the characteristic function of a set A , one gets the intuitive formula The theorem is named for Johann Radon Johann Radon ( December 16, 1887 May 25, 1956) was a mathematician born in Litomerice in Bohemia (now Czech Republic). He wrote a doctoral dissertation on calculus of variations in 1910, at the University of Vienna. He is best known now for: his part in t

33. Famous Mathematician - Johann Radon Full Name johann radon. Lived Between 18871956. Nationality Austrian Claim to Fame johann radon applied the calculus of variations to differential http://www.famousmathematician.com/profiles/johann_radon.htm

Johann Radon Full Name: Johann Radon Lived Between: 1887-1956 Nationality: Austrian Primary Occupation: Claim to Fame: Johann Radon applied the calculus of variations to differential geometry, leading to applications in number theory. Mathematically, a projection can be described by the Radon transform, which is to transform two-dimensional images with lines into a domain of possible line parameters, where each line in the image will give a peak positioned at the corresponding line parameters. Recommended Book: Johann Radon: Collected Works Peter M. Gruber, Johann Radon; Hardcover Recommended Link: http://marr.bsee.swin.edu.au/~dtl/het408/backproj/node2.html Send mail to webmaster@famousmathematician.com with questions or comments about this web site. www.famousmathematician.com Last modified: January 23, 2003

34. Inverse Problems Reunion Conference I Heinz Engl (johannes Kepler University Linz, johann radon Institute for Computational and Applied Math). From Ironmaking Furnaces via Inverse Problems to http://www.ipam.ucla.edu/schedule.aspx?eid=501

35. Inverse Problems Culminating Workshop At Lake Arrowhead Heinz Engl (johannes Kepler University Linz, johann radon Institute for Andreas Hofinger (johann radon Institute for Computational and Applied http://www.ipam.ucla.edu/schedule.aspx?pc=invla

36. CSRI Seminar: Sven Beuchler johann radon Institute for Computational and Applied Mathematics Linz, Austria sven.beuchler@oeaw.ac.at. Date, Monday, March 1, 2004. Time, 1011am (PT) http://csmr.ca.sandia.gov/csri/seminars/beuchler04.html

Title A parallel multilevel preconditioner for the p-version of the Finite Element Method Speaker Sven Beuchler Johann Radon Institute for Computational and Applied Mathematics Linz, Austria sven.beuchler@oeaw.ac.at Date Monday, March 1, 2004 Time 10-11am (PT) 11-12am (MT) Location Bldg. 921, Room 137 (Sandia - CA) Bldg. 980, Room 95 (Sandia - NM) Abstract In this talk, a uniformly elliptic second order boundary value problem in 2D is discretized by the p-version of the finite element method. An inexact parallel Dirichlet-Dirichlet domain decomposition pre-conditioner for the system of linear algebraic equations is investigated. Using methods of multi-resolution analysis, we propose optimal preconditioners for Schur complement, the solver on the subdomains and the extension operating from the edges of the elements into their interior. On the one hand, a suboptimal condition number estimates are given, on the other hand numerical experiments on the parallel computer show the performance and speed up of the proposed methods. About the Speaker Dr. Sven Beuchler received his Diplom in Mathematics from TU Chemnitz in 1999. He completed his Ph.D. in 2003 at TU Chemnitz under the direction of Professor Arnd Meyer. His thesis is entitled "Multilevel solvers for degenerate problems with applications to the p-version of the FEM." Dr. Beuchler is currently a Research Assistant in the Department of Scientific Computing at the Johan Radon Institute for Computational and Applied Mathematics (RICAM) in Linz, Austria. He is currently part of a research group specializing in computational methods for direct field problems, such as those arising in computational fluid mechanics structural mechanics, and electromagnetics.

37. Mathematics At The Brno German Technical University Some of them are eg Emanuel Czuber, Ernst Fischer, johann radon, Georg Hamel, An important person is johann radon (18871956) who was an assistant to http://www.math.muni.cz/~sisma/English/bautzen.html

Mathematics at the Brno German Technical University Introduction This lecture is devoted to education of mathematics at the school which was the first technical school in Brno. The history of the German Technical University is the history of technical educational institution until 1945. In 1849 the school started as a Technical College, and during 1849-1873 it was transformed into Technical University of the second half of 19th century. The students of the school came to Brno from many parts of the Austro-Hungarian Empire and later from many other countries. The aim of this lecture is to describe the staff at the Departments of Mathematics. There were many renowned mathematicians teaching at this school, especially up to 1918. These, in most cases young, mathematicians became professors of important universities in Austria and Germany. Some of them are e.g. Emanuel Czuber, Ernst Fischer, Johann Radon, Georg Hamel, Richard Mises, and Heinrich Tietze. Some well-known Czech, German, and Austrian mathematicians also tried to become professors at the German Technical University in Brno: for example, Matyas Lerch, Hans Hahn, Wilhelm Blaschke and Emil Artin. The hundred years' history of this school still remains largely unexplored in the Czech Republic. The already existing works are mostly in German and their main concern is the foundation of the school. From later period, these works mention mainly organizational matters of the school. The most important resources are

38. Faculty Of Mathematics @ University Of Vienna This grave collapse could only be overcome by hiring again johann radon, and through the work and the activities of personalities such as Edmund Hlawka, http://radon.mat.univie.ac.at/institute/history.php

Faculty of Mathematics University of Vienna Local time Wed September 7 2005 12:45 pm Deutsch English History of the Mathematics Institute Home News The Faculty of Mathematics Courses ... Links The history of mathematics at the University of Vienna traces back to the year of foundation of the University of Vienna, 1365. As a part of the education in the Artistic Faculty , mathematics was, right from the beginning, an integral part of university life in Vienna. Among the most important mathematicians in that time there are Johann von Gmunden Georg von Peuerbach and in particular , who became later known, and famous, under the name of his origin, Regiomontanus . He was perhaps the leading mathematician of his time. For example, his trigonometric tables went with Christoph Columbus on his trip to the "new world". Also in the next period, until the end of the 17th century, several famous mathematicians worked at the University of Vienna: For example, the "mathematical poet" Konrad Celtis Johann Stabius who desigend the first (heart-shaped) map with correct representations of area

39. Lexikon Johann Radon johann radon aus der freien http://lexikon.freenet.de/Johann_Radon

E-Mail Mitglieder Community Suche ... Hilfe document.write(''); im Web in freenet.de in Shopping Branchen Lexikon Artikel nach Themen alphabetischer Index Artikel in Kategorien Weitere Themen Po-Rasur und Zicken- krieg: Olivia Jones mischt das BB-Dorf auf Noch mehr Sex und Intrigen: Die neuen "Housewives" œberraschung: Aldi bietet 3-GHz-PC f¼r nur 499 Euro an Peugeot 20Cup: Doppelter FahrspaŸ ohne Ende ... Expertenrat: So sollte Ihr Depot aussehen Sie sind hier: Startseite Lexikon Johann Radon Johann Radon Johann Radon 16. Dezember in Tetschen a. d. Elbe (heute Decin, Tschechien 25. Mai in Wien ) war ein ¶sterreichischer Mathematiker Inhaltsverzeichnis showTocToggle("Anzeigen","Verbergen") 1 Leben 2 Leistungen 3 Literatur 4 Weblinks ... Bearbeiten Leben Johann Radon promovierte 1910 an der Universit¤t Wien zum Doktor der Philosophie. Das Jahr 1911 verbrachte er in G¶ttingen , war danach Assistent in Br¼nn und von 1912 bis 1919 Assistent an der Lehrkanzel II der Technischen Hochschule in Wien. 1919 wechselte er Jahr als Assistent nach Hamburg , danach wurde er 1922 Professor in Greifswald und 1925 in Erlangen . 1928 bis 1945 arbeitete er in Breslau . Am 1. Oktober 1946 wurde er zum Ordinarius am Mathematischen Institut der Universit¤t Wien ernannt. 1954 wurde er Rektor der Universit¤t Wien. Bearbeiten Leistungen Mit dem Namen Radon sind vor allem die Radon-Transformation , die in der Computertomographie verwendet wird, sowie der in der

40. Still Working On This One johann radon worked out the mathematics of reconstructing a function from a set johann radon did a great deal of work on the Calculus of variations and http://www.culver.org/academics/mathematics/faculty/haynest/nctm/algebra1x/baarc

Johann Radon source Johann Radon lived from 1887 to 1956 He was alive during the Great Depression. Johann Radon worked out the mathematics of reconstructing a function from a set of projections in 1917. This decomposition of a function is now called the Radon transform. It is a large part of computed topography. Johann Radon did a great deal of work on the Calculus of variations and Measure theory. He also worked on Differential geometry. Differential geometry studies properties of manifolds which depend on being able to do differentiation. Examples of the properties studied are curvature and torsion for curves and various curvatures for surfaces. MATH!!! MATH!!! MATH!!! MATH!!! MATH!!! MATH!!! MATH!!!

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