| 词条 | Ernst Steinitz |
| 释义 |
| name = Ernst Steinitz | image = Tombstone Ernst Steinitz Wroclaw.png | image_size = | alt = | caption = Tombstone of Ernst Steinitz, Old Jewish Cemetery, Wrocław (street Lotnicza). | birth_date = {{birth date |1871|6|13|df=y}} | birth_place = Laurahütte, Silesia, Germany | death_date = {{death date and age |1928|9|29 |1871|6|13|df=y}} | death_place = Kiel, Schleswig-Holstein, Germany | nationality = German | fields = Mathematics | workplaces = University of Kiel | alma_mater = University of Breslau | doctoral_advisor = Jakob Rosanes | doctoral_students = | known_for = | awards = }} Ernst Steinitz (13 June 1871 – 29 September 1928) was a German mathematician. BiographySteinitz was born in Laurahütte (Siemianowice Śląskie), Silesia, Germany (now in Poland), the son of Sigismund Steinitz, a Jewish coal merchant, and his wife Auguste Cohen; he had two brothers. He studied at the University of Breslau and the University of Berlin, receiving his Ph.D. from Breslau in 1894. Subsequently, he took positions at Charlottenberg (now the Technical University of Berlin), Breslau, and the University of Kiel, Germany, where he died in 1928. Steinitz married Martha Steinitz and had one son. Mathematical worksSteinitz's 1894 thesis was on the subject of projective configurations; it contained the result that any abstract description of an incidence structure of three lines per point and three points per line could be realized as a configuration of straight lines in the Euclidean plane with the possible exception of one of the lines. His thesis also contains the proof of Kőnig's theorem for regular bipartite graphs, phrased in the language of configurations. In 1910 Steinitz published the very influential paper Algebraische Theorie der Körper (German: Algebraic Theory of Fields, Crelle's Journal (1910), 167–309). In this paper he axiomatically studies the properties of fields and defines important concepts like prime field, perfect field and the transcendence degree of a field extension. Steinitz proved that every field has an algebraic closure. He also made fundamental contributions to the theory of polyhedra: Steinitz's theorem for polyhedra is that the 1-skeletons of convex polyhedra are exactly the 3-connected planar graphs. His work in this area was published posthumously as a 1934 book, Vorlesungen über die Theorie der Polyeder unter Einschluss der Elemente der Topologie,[1] by Hans Rademacher. See also
References1. ^{{cite journal|author=Tucker, A. W.|authorlink=Albert W. Tucker|title=Review: Vorlesungen über die Theorie der Polyeder unter Einschluss der Elemente der Topologie by Ernest Steinitz, completed by H. Rademacher, and Lehrbuch der Topologie by H. Seifert and W. Threlfall|journal=Bull. Amer. Math. Soc.|year=1935|volume=41|issue=7|pages=468–471|url=http://www.ams.org/journals/bull/1935-41-07/S0002-9904-1935-06116-6/S0002-9904-1935-06116-6.pdf|doi=10.1090/s0002-9904-1935-06116-6}}
13 : 1871 births|1928 deaths|20th-century mathematicians|Algebraists|German mathematicians|German people of Jewish descent|People from Siemianowice Śląskie|People from the Province of Silesia|University of Breslau alumni|Humboldt University of Berlin alumni|Technical University of Berlin faculty|University of Kiel faculty|Technical University of Berlin alumni |
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