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Felix Hausdorff ( November 8 1868 - January 26 1942) was a German mathematician who is considered to be one of the founders of modern topology and who contributed significantly to set theory and functional analysis. He defined and studied partially ordered sets, Hausdorff spaces, and the Hausdorff dimension. He proved the Hausdorff maximality theorem. He published philosophical and literary works under the pseudonym "Paul Mongré".
Hausdorff studied in Leipzig and taught mathematics there until 1910, when he became professor of mathematics in Bonn. When the Nazis came to power, Hausdorff, who was Jewish, felt that as a respected university professor he would be spared from persecution. However, his abstract mathematics was denounced as "Jewish", useless, and "un-German" and he lost his position in 1935Events January January 1 Italian colonies of Tripoli and Kyrenaika are joined together as Libya January 7 World War II: Italian premier Benito Mussolini and French foreign minister Pierre Laval conclude agreement in which each power undertakes not to oppo. When in 1942 he could no longer avoid being sent to a concentration camp, Hausdorff committed suicideSuicide (from Latin sui caedere to kill oneself) is the act of ending one's own life. It is considered a sin in many religions, and a crime in some jurisdictions. On the other hand, some cultures have viewed it as an honorable way to exit certain shameful together with his wife and sister-in-law.
Hausdorff, Felix
Hausdorff, Felix
Hausdorff, Felix
Hausdorff
