Template:Selected anniversaries/December 9: Difference between revisions

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||1902: Hans Wilhelm Eduard Schwerdtfeger born ... mathematician who worked in Galois theory, matrix theory, theory of groups and their geometries, and complex analysis. Pic.
||1902: Hans Wilhelm Eduard Schwerdtfeger born ... mathematician who worked in Galois theory, matrix theory, theory of groups and their geometries, and complex analysis. Pic.


File:Dalton Trumbo prison 1950.jpg|link=Dalton Trumbo (nonfiction)|1905: Screenwriter and novelist [[Dalton Trumbo (nonfiction)|Dalton Trumbo]] born. He will be blacklisted for refusing testify before the House Un-American Activities Committee (HUAC) in 1947; while blacklisted, he will win two Academy Awards while blacklisted (''Roman Holiday'', attributed to a front author, and ''The Brave One'' under the pseudonym "Robert Rich").
File:Dalton Trumbo prison 1950.jpg|link=Dalton Trumbo (nonfiction)|1905: Screenwriter and novelist [[Dalton Trumbo (nonfiction)|Dalton Trumbo]] born. He will be blacklisted for refusing testify before the House Un-American Activities Committee (HUAC) in 1947; while blacklisted, he will win Academy Awards for two films: ''Roman Holiday'', attributed to a front author, and ''The Brave One'' under the pseudonym Robert Rich.


||1905: Emanuel Sperner born ... mathematician. He proposed Sperner's theorem, which says that the size of an antichain in the power set of an n-set (a Sperner family) is at most the middle binomial coefficient(s). Pic.
||1905: Emanuel Sperner born ... mathematician. He proposed Sperner's theorem, which says that the size of an antichain in the power set of an n-set (a Sperner family) is at most the middle binomial coefficient(s). Pic.

Revision as of 15:29, 9 December 2019