Helmut

Helmut Ulm

#69,270
Most Influential Person Across History

German mathematician

Helmut Ulm's Academic­Influence.com Rankings

Helmut Ulm
Mathematics
#3448
Historical Rank
Algebra
#248
Historical Rank
mathematics Degrees
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According to Wikipedia, Helmut Ulm was a German mathematician who established the classification of countable periodic abelian groups by means of their Ulm invariants. Career Helmut Ulm's father was an elementary school teacher in Elberfeld. After finishing high school in Wuppertal in 1926, he attended the universities of Göttingen , Jena and Bonn , where he studied mathematics and physics, attending the lectures of Richard Courant, Erich Bessel-Hagen, Felix Hausdorff, and the joint Hausdorff–Otto Toeplitz seminar. He graduated summa cum laude in 1930 with a thesis about countable periodic abelian groups . In 1933–1935 he was an assistant in Göttingen and worked with Wilhelm Magnus and Olga Taussky-Todd editing David Hilbert's Collected Works. His Habilitationsschrift developed a generalization of the elementary divisor theory to infinite matrices, continuing ideas of Ulm's teacher Toeplitz. It was submitted in Münster in 1936 and refereed by Heinrich Behnke, Gottfried Köthe, F. K. Schmidt, and B. L. van der Waerden. Ulm's promotion was delayed, apparently, due to his anti-Nazi views.

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