21. Hausdorff, Felix (1868-1942) -- From Eric Weisstein's World Of Scientific Biogra Mathematicians. Nationality. German. Biography Contributors. Elkins. hausdorff, felix (18681942) This entry contributed by Ben Elkins. German mathematician who founded point-set topology in Grundzüge der Mengenlehre ( Topology and Its Applications International Conference in Memory of felix hausdorff (1868-1942 Berlin, March 22-28). http://scienceworld.wolfram.com/biography/Hausdorff.html

Branch of Science Mathematicians Nationality German ... Elkins Hausdorff, Felix (1868-1942) This entry contributed by Ben Elkins German mathematician who founded point-set topology in (1914). He also developed Hausdorff spaces In addition to his work in set theory Hausdorff developed the concepts of metric and topological spaces Hausdorff sought to develop the idea of "closeness" without any dependency on being able to "measure" the distance between these points. As a result of the Nazi Nuremberg Laws of 1935, Hausdorff was forced to leave his academic position at Bonn and, although he remained mathematically active for several more years, his research could only be published outside Germany. In January 1942, when internment in a concentration camp became imminent, Hausdorff, his wife, and her sister committed suicide together (Burton 1995). Additional biographies: MacTutor (St. Andrews) References Vorlesungen zum Gedenken an Felix Hausdorff. Burton, D. M. The History of Mathematics: An Introduction, 3rd ed. William C. Brown, 1995. Czyz, J.

22. Hausdorff Biography of felix hausdorff (18681942) felix hausdorff. Born 8 Nov 1868 in Breslau, Germany (now Wroclaw, Poland) felix hausdorff graduated from Leipzig in 1891 and then taught there until http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Hausdorff.html

Felix Hausdorff Born: 8 Nov 1868 in Breslau, Germany (now Wroclaw, Poland) Died: 26 Jan 1942 in Bonn, Germany Click the picture above to see four larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Felix Hausdorff As a Jew his position became more and more difficult. In 1941 he was scheduled to go to an internment camp but managed to avoid being sent. However by 1942 he could no longer avoid being sent to the internment camp and, together with his wife and his wife's sister, he committed suicide. Hausdorff's main work was in topology and set theory. He introduced the concept of a partially ordered set and from 1906 to 1909 he proved a series of results on ordered sets. In 1907 he introduced special types of ordinals in an attempt to prove Cantor 's continuum hypothesis . He also posed a generalisation of the continuum hypothesis by asking if 2 to the power n was equal to n . Hausdorff proved further results on the cardinality of Borel sets in 1916.

23. Hausdorff, Felix hausdorff, felix (18681942). German mathematician and philosopherwho developed the branch of mathematics known as topology, in http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/H/Hausdorff/1.ht

Hausdorff, Felix German mathematician and philosopher who developed the branch of mathematics known as topology, in which he formulated the theory of point sets. He investigated general closure spaces, and formulated Hausdorff's maximal principle in general set theory. Hausdorff was born in Breslau, Germany (now Wroclaw, Poland), and studied at Berlin, Freiburg, and Leipzig. In 1902 he was appointed professor at Leipzig, later moving to Bonn. During World War II he committed suicide rather than be sent to a concentration camp. Hausdorff formulated a theory of topological and metric spaces, proposing that such spaces be regarded as sets of points and sets of relations among the points, and introduced the principle of duality. This principle states that an equation between sets remains valid if the sets are replaced by their complements and the symbol for union is exchanged for that of intersection. He also created what are now called Hausdorff's neighbourhood axioms; from these four axioms he derived Hausdorff's topological spaces. A topological space is understood to be a set E of elements x and certain subsets Sx of E which are known as neighbourhoods of x.

24. Hausdorff, Asser, Flachsmeyer And Rinow (1972) Theory Of Sets And Topology: In H An academic directory and search engine Editor hausdorff, felix ( b. 1868, d. 1942 http://www.getcited.org/pub/101450651

getCITED Home Search Add Content Reports ... Help Publications People Faculties Institutions Edit Publication Edit Contributors Delete Publication Edit References ... Change Bookstack Theory of sets and topology: In honour of Felix Housdorff (1868-1942 Post a Comment CONTRIBUTORS: Editor Hausdorff, Felix (b. 1868, d. 1942) Editor Asser, Günter Editor Flachsmeyer, J. Editor Rinow, Willi PUBLISHER: Deutscher Verlag der Wissenschaften (Berlin) SERIES TITLE: YEAR: PUB TYPE: Book, Edited VOLUME/EDITION: PAGES: 525 p. SUBJECT(S): Set theory; Topology; Addresses, essays, lectures DISCIPLINE: No discipline assigned LC NUMBER: HTTP: LANGUAGE: English PUB ID: Last edited on 2002/02/27 17:18:19 US/Mountain SPONSOR(S): ABSTRACT: English, French, German or Russian. Includes bibliographies. STATISTICS Click on # to view Citations Chapters Citations of Chapters Comments Quality Interest View(er)s Quality N/A High Low Interest N/A High Low Prev Next ABOUT getCITED CONTACT US USER INFO PREFERENCES PRIVACY LOG IN Comments? Suggestions? Send them to

25. Springer-Verlag - Mathematics hausdorff Gesammelte Werke Band II Grundzüge der Mengenlehre Volume packagehausdorff,F.felix hausdorff Gesammelte Werke hausdorff, felix Brieskorn, E http://www.springeronline.com/sgw/cda/frontpage/0,10735,5-10042-22-2150850-detai

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26. Re: Felix Hausdorff By Samuel S. Kutler Re felix hausdorff by Samuel S. Kutler. reply to this message. post a message on a new topic. Back to mathhistory-list. Subject Re felix hausdorff Author Samuel S. sjca.edu Date Thu, 2 Oct http://mathforum.com/epigone/math-history-list/twooshimdo

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27. Springer-Verlag - Analysis Gesammelte Werke Band IV Analysis, Algebra und Zahlentheorie Volume packagehausdorff,F.felix hausdorff Gesammelte Werke hausdorff, felix Chatterji, SD http://www.springeronline.com/sgw/cda/frontpage/0,10735,5-10044-22-2150913-detai

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28. Wikipedia Felix Hausdorff Wikipedia Free Encyclopedia's article on 'felix hausdorff' felix hausdorff (November 8, 1868 January 26, 1942) was a German partially ordered sets, hausdorff spaces, and the hausdorff dimension. He proved the hausdorff maximality theorem http://rdre1.inktomi.com/click?u=http://en.wikipedia.org/wiki/Felix_Hausdorff&am

29. Hausdorff Portraits Portraits of felix hausdorff felix hausdorff. JOC/EFR August 2001 http//wwwhistory.mcs.st-andrews.ac.uk/ history/PictDisplay/hausdorff.html http://www-history.mcs.st-and.ac.uk/~history/PictDisplay/Hausdorff.html

Felix Hausdorff JOC/EFR August 2001 The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/history/PictDisplay/Hausdorff.html

30. Allmath.com - Math Site For Kids! Home Of Flashcards, Math Click Here hausdorff, felix. howsdaw(r)f (18681942). Mathematician,born in Wroc lstrok;aw, Poland (formerly Breslau, Germany). http://www.allmath.com/biosearch.php?QMeth=ID&ID=14931

31. Names Hamilton Hammerstein47H30 Hankel Hardy Hartogs hausdorff Hecke Helly Helmholtz Helson Hensel Hermite Heyting 41A) is not the felix Bernstein of the set theory SchroederBernstein http://www.math.niu.edu/~rusin/known-math/98/MSC.names

32. Biografia De Hausdorff, Felix Translate this page hausdorff, felix. (Breslau, 1868-Bonn, 1942) Matemático alemán.Profesor en Leipzig y en Bonn, realizó diversos estudios sobre http://www.biografiasyvidas.com/biografia/h/hausdorff.htm

Inicio Buscador Utilidades Recomendar sitio Enlaces Hausdorff, Felix (Breslau, 1868-Bonn, 1942) Matemático alemán. Profesor en Leipzig y en Bonn, realizó diversos estudios sobre álgebra, análisis, topología y teoría de conjuntos y estableció la teoría de los espacios topológicos y métricos. Se suicidó, junto con su mujer y su hermana, para evitar su internamiento por los nazis en un campo de concentración. Inicio Buscador Recomendar sitio

33. Bio 1929 _18651940 Harden, Maximilian (orig. felix Ernst Witkowski) Ger 1912 _1862-1946 hausdorff, felix Ger. math.; eponym of hausdorff metric hausdorff paradox _1868-1942 http://ftp.std.com/obi/Biographical/biog_dict.h

34. Auteur - Hausdorff, Felix http://bibli.cirm.univ-mrs.fr/Auteur.htm?numrec=061910479919220

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37. AIM Reprint Library: Translate this page Hassett, Brendan Hastad, J. Hastad, Johan Hastad, Johan T. Hatfield, C. Hatfield,Peter J. Hattori, Akira Hauschild, H. hausdorff, felix Hausknecht Hausknecht http://www.aimath.org/library/library.cgi?database=reprints;mode=display;BrowseL

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39. Lexikon - Felix Hausdorff Definition Erklärung Bedeutung Translate this page Was Wer Wo ist felix hausdorff - Definition Erklärung Bedeutung von felixhausdorff. felix hausdorff. Artikel auf Englisch felix hausdorff. http://www.net-lexikon.de/Felix-Hausdorff.html

Suche: Info Mitglied werden A B ... Impressum Beta 0.71 powered by: akademie.de Wikipedia PHP PostgreSQL ... englischen Lexikon Google News zum Stichwort Felix Hausdorff Definition, Bedeutung, Erkl¤rung im Lexikon Artikel auf Englisch: Felix Hausdorff Felix Hausdorff 8. November in Breslau , Deutschland (heute Wroclaw, Polen 26. Januar in Bonn ) war ein deutscher Mathematiker . Er gilt als Mitbegr¼nder der modernen Topologie und lieferte wesentliche Beitr¤ge zur Mengenlehre und MaŸtheorie Hausdorff studierte in Leipzig und lehrte dort sp¤ter Mathematik bis , als er eine Berufung an die Universit¤t Bonn bekam. Von bis hatte er eine Stelle als auŸerordentlicher Professor in Greifswald , kehrt dann aber nach Bonn zur¼ck. Obwohl j¼discher Abstammung, glaubte Hausdorff auch nach der Machtergreifung der Nationalsozialisten an seine Immunit¤t als angeseher Akademiker. Doch bald wurde seine Forschung als "j¼disch", "nutzlos" und "undeutsch" denunziert und er wurde seiner Stelle verwiesen. W¤hrend er seine Tochter zur Sicherheit nach England schickte, blieb er selber in Deutschland. Als ihm 1942 die Verschickung in ein Konzentrationslager drohte, nahm er sich, zusammen mit seiner Frau und seiner Schw¤gerin, das Leben.

40. Re: Topologically Continuous Surface By Antreas P. Hatzipolakis 2. Aufl. Leipzig de Gruyter, 1914 Other Publications 1 Set theory hausdorff,felix 1978 Chelsea Publ. 3 Set theory hausdorff, felix 1962 Chelsea Publ. http://mathforum.org/epigone/math-history-list/ranmalkum/v01540B01B059D34F76D9@[

Re: Topologically Continuous Surface by Antreas P. Hatzipolakis reply to this message post a message on a new topic Back to messages on this topic Back to math-history-list Subject: Re: Topologically Continuous Surface Author: xpolakis@hol.gr Date: http://users.hol.gr/~xpolakis/ The Math Forum

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