Johannes Trolle Hjelmslev (Danish:[ˈjelˀmsle̝w]; 7 April 1873 – 16 February 1950) was a mathematician from Hørning, Denmark. Hjelmslev worked in geometry and history of geometry. He was the discoverer and eponym of the Hjelmslev transformation, a method for mapping an entire hyperbolic plane into a circle with a finite radius.
He was the father of Louis Hjelmslev.
Originally named Johannes Trolle Petersen, he changed his patronymic to the surname Hjelmslev to avoid confusion with Julius Petersen. Some of his results are known under his original name, including the Petersen–Morley theorem.[1]
^Lützen, Jesper (2020), "The mystery of ten wooden blocks: Hjelmslev's geometry of reality", Mathematische Semesterberichte, 67 (2): 161–167, doi:10.1007/s00591-020-00275-3, MR 4173423, S2CID 216291607
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Johannes Trolle Hjelmslev (Danish: [ˈjelˀmsle̝w]; 7 April 1873 – 16 February 1950) was a mathematician from Hørning, Denmark. Hjelmslev worked in geometry...
Hjelmslev may refer to: Persons Louis HjelmslevJohannesHjelmslev Other Hjelmslev's theorem Hjelmslev transformation This disambiguation page lists articles...
Born into an academic family (his father was the mathematician JohannesHjelmslev), Hjelmslev studied comparative linguistics in Copenhagen, Prague and Paris...
the beliefs of Ludwig Wittgenstein, Robin Gandy, Petr Vopěnka, and JohannesHjelmslev. Shaughan Lavine has developed a form of set-theoretical ultrafinitism...
finite radius. The transformation was invented by Danish mathematician JohannesHjelmslev. It utilizes Nikolai Ivanovich Lobachevsky's 23rd theorem from his...
Amsterdam 1672 by Georg Mohr; JohannesHjelmslev; Beiträge zur Lebensbeschreibung von Georg Mohr (1640-1697) by JohannesHjelmslev", Isis, 26 (1): 167–170,...
Amsterdam 1672 by Georg Mohr; JohannesHjelmslev; Beiträge zur Lebensbeschreibung von Georg Mohr (1640-1697) by JohannesHjelmslev", Isis, 26 (1): 167–170,...
radio engineer and father of radio astronomy (b. 1905) February 16 JohannesHjelmslev, Danish mathematician (b. 1873) Mile-a-Minute Murphy, American cyclist...
elementary geometry with mirroring operations, previously begun by JohannesHjelmslev and others. After the war, Bachmann worked with the mathematician...
theatre director (died 1943) 7 April JohannesHjelmslev, mathematician, discoverer and eponym of the Hjelmslev transformation (died 1950) Christian Nielsen...
with hilly terrain, in Ydby parish, near Thisted. Dover sogn a parish in Hjelmslev hundred in Århus amt. It has a hilly terrain with steep slopes. Norway...
linguists such as Franz Bopp, August Schleicher, Adalbert Bezzenberger, Louis Hjelmslev, Ferdinand de Saussure, Winfred P. Lehmann, Vladimir Toporov and others...
structural engineer Alf Ross (1899–1979), Danish legal philosopher Louis Hjelmslev (1899–1965), Danish linguist, founder of Copenhagen School Anton Frederik...
Canger, linguist Christian Falster (1690–1752), poet and philologist Louis Hjelmslev (1899–1955) Eli Fischer-Jørgensen (1911–2010), phonetician Frede Jensen...
John Napoleon Brinton (United States, 1859–1937), Iroquoian languages Hjelmslev, Louis (Denmark, 1899–1965), comparative linguistics, semantics Hobbs...
school concept, André Martinet in France, J. R. Firth in the UK and Louis Hjelmslev in Denmark developed their own versions of structural and functional linguistics...
proposed by Georg von der Gabelentz in his Sprachwissenschaft (1891). Louis Hjelmslev proposed typology as a large-scale empirical-analytical endeavour of comparing...
linguists such as Franz Bopp, August Schleicher, Adalbert Bezzenberger, Louis Hjelmslev, Ferdinand de Saussure, Winfred P. Lehmann and Vladimir Toporov, Jan Safarewicz...
B. Costain, Rampo Edogawa, Eleanor Farjeon, Lorraine Hansberry, Louis Hjelmslev, Mehdi Huseyn, Shirley Jackson, Randall Jarrell, Una Marson, Betty Miller...
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