Hermann Minkowski (/mɪŋˈkɔːfski, ˈkɒf/;^{[1]} German: [mɪŋˈkɔfski]; 22 June 1864 – 12 January 1909) was a German mathematician and professor at Königsberg, Zürich and Göttingen. He created and developed the geometry of numbers and used geometrical methods to solve problems in number theory, mathematical physics, and the theory of relativity.
Minkowski is perhaps best known for his work in relativity, in which he showed in 1907 that his former student Albert Einstein's special theory of relativity (1905) could be understood geometrically as a theory of fourdimensional space–time, since known as the "Minkowski spacetime".
Hermann Minkowski  

 
Born 
22 June 1864 Aleksotas, Kovno Governorate, Russian Empire (now in Kaunas, Lithuania) 
Died 
12 January 1909 (aged 44) Göttingen, German Empire 
Nationality  German 
Alma mater  Albertina University of Königsberg 
Known for 
Geometry of numbers Minkowski content Minkowski diagram Minkowski's question mark function Minkowski space Work on the Diophantine approximations 
Spouse(s)  Auguste Adler 
Children  Lily (1898–1983), Ruth (1902–2000) 
Scientific career  
Fields  Mathematician 
Institutions  University of Göttingen and ETH Zurich 
Doctoral advisor  Ferdinand von Lindemann 
Doctoral students 
Constantin Carathéodory Dénes Kőnig 
Signature  

Hermann Minkowski was born in Aleksotas, a village in the Kovno Governorate of the Russian Empire (now incorporated into the city of Kaunas, Lithuania) to Lewin Boruch Minkowski, a merchant who subsidized the building of the choral synagogue in Kovno,^{[2]}^{[3]}^{[4]} and Rachel Taubmann, both of Jewish descent.^{[5]} Hermann was a younger brother of the medical researcher, Oskar (born 1858).^{[6]} In different sources Minkowski's nationality is variously given as German,^{[7]}^{[8]} Polish,^{[9]}^{[10]}^{[11]} or LithuanianGerman,^{[12]} or Russian.^{[13]}
To escape persecution in Russia the family moved to Königsberg in 1872,^{[14]} where the father became involved in rag export and later in manufacture of mechanical clockwork tin toys (he operated his firm Lewin Minkowski & Son with his eldest son Max).^{[15]}
Minkowski studied in Königsberg and taught in Bonn (1887–1894), Königsberg (1894–1896) and Zurich (1896–1902), and finally in Göttingen from 1902 until his premature death in 1909. He married Auguste Adler in 1897 with whom he had two daughters; the electrical engineer and inventor Reinhold Rudenberg was his soninlaw.
Minkowski died suddenly of appendicitis in Göttingen on 12 January 1909. David Hilbert's obituary of Minkowski illustrates the deep friendship between the two mathematicians (translated):
The mainbelt asteroid 12493 Minkowski and Mmatrices are named in Minkowski's honor.^{[16]}
Minkowski was educated in East Prussia at the Albertina University of Königsberg, where he earned his doctorate in 1885 under the direction of Ferdinand von Lindemann. In 1883, while still a student at Königsberg, he was awarded the Mathematics Prize of the French Academy of Sciences for his manuscript on the theory of quadratic forms. He also became a friend of another renowned mathematician, David Hilbert. His brother, Oskar Minkowski (1858–1931), was a wellknown physician and researcher.
Minkowski taught at the universities of Bonn, Göttingen, Königsberg, and Zürich. At the Eidgenössische Polytechnikum, today the ETH Zurich, he was one of Einstein's teachers.
Minkowski explored the arithmetic of quadratic forms, especially concerning n variables, and his research into that topic led him to consider certain geometric properties in a space of n dimensions. In 1896, he presented his geometry of numbers, a geometrical method that solved problems in number theory. He is also the creator of the Minkowski Sausage and the Minkowski cover of a curve.^{[17]}
In 1902, he joined the Mathematics Department of Göttingen and became a close colleague of David Hilbert, whom he first met at university in Königsberg. Constantin Carathéodory was one of his students there.
By 1907 Minkowski realized that the special theory of relativity, introduced by his former student Albert Einstein in 1905 and based on the previous work of Lorentz and Poincaré, could best be understood in a fourdimensional space, since known as the "Minkowski spacetime", in which time and space are not separated entities but intermingled in a four dimensional space–time, and in which the Lorentz geometry of special relativity can be effectively represented using the invariant interval (see History of special relativity).
The mathematical basis of Minkowski space can also be found in the hyperboloid model of hyperbolic space already known in the 19th century, because isometries (or motions) in hyperbolic space can be related to Lorentz transformations, which included contributions of Wilhelm Killing (1880, 1885), Henri Poincaré (1881), Homersham Cox (1881), Alexander Macfarlane (1894) and others (see History of Lorentz transformations).
The beginning part of his address called "Space and Time" delivered at the 80th Assembly of German Natural Scientists and Physicians (21 September 1908) is now famous:
"The views of space and time which I wish to lay before you have sprung from the soil of experimental physics, and therein lies their strength. They are radical. Henceforth space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union of the two will preserve an independent reality."
Einstein at first viewed Minkowski's treatment as a mere mathematical trick, before eventually realizing that a geometrical view of space–time would be necessary in order to complete his own later work in general relativity (1915).^{[18]}
Kovno. In 1873 the merchant kupez, Levin Minkovsky, gave (as a gift) to the prayer association of the Kovno state Jewish school a lot with an ongoing construction of a prayer school that (the construction) he had started so that the association would take care of completing the construction. The association, having some funds from voluntary contributions, had built the structure up to the roof, but then, ran out of money
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