Heinrich Jung
Heinrich Wilhelm Ewald Jung ( born May 4, 1876 in Essen, † March 12, 1953 in Halle ( Saale) ) was a German mathematician. It dealt mainly with geometry and algebraic geometry.
Life and work
Heinrich Jung was born the son of a mountain Council in Essen and studied from 1895 to 1899 Mathematics, Physics and Chemistry in Marburg / Lahn and Berlin among others, Friedrich Schottky, Kurt Hensel, Lazarus Immanuel Fuchs, Hermann Amandus Schwarz, Ferdinand Georg Frobenius and Max Planck. In his dissertation ( Marburg, 1899, "On the smallest sphere that encloses a solid figure " ) with Schottky he proved the theorem named after him by Jung. In 1902 he completed his habilitation in Marburg and remained there until 1908 as a lecturer. After that, he was teacher in Hamburg before he was professor at Kiel in 1913. After brief military service in World War I, he became in 1918 professor in Dorpat and 1920, the successor of Albert Wangerin ( 1844-1933 ) at the University of Halle, where he worked until his retirement in 1948 as a director of the Mathematical Seminary and Dean of the Faculty of Mathematics and Natural Sciences was held until 1951, and lectures. He was a member of the German Academy of Sciences ( Leopoldina ).
Jung built with his teacher Schottky from the general theory of theta-functions. But he is best known for his arithmetic theory of algebraic functions in two variables. His work in this area he summarized in his book "Introduction to the algebraic theory of functions of two variables " together. He turned his theory on algebraic surfaces on (summarized in the book " Algebraic Surfaces " ) and dealt with birational transformations in the plane ( Cremona transformations ).
Jung was active politically and was in the Weimar Republic, a member of the anti-republican Pan-German League and the Stahlhelm, Bund soldiers at the front. In the era of National Socialism, he was a member of the National Socialist People's Welfare (NSV ), the National Socialist German lecturers Federation ( NSDDB ) and the National Socialist Bund old boys. In 1945, he joined the CDU.
Writings
- "Introduction to the algebraic theory of functions of two variables ", Berlin, Akademie Verlag, 1951
- " Algebraic Surfaces ", 1925