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Ludvig Sylow
Peter Ludvig Meidell Sylow () (12 December 1832 – 7 September 1918) was a Norwegian mathematician who proved foundational results in group theory. Sylow processed and further developed the innovative works of mathematicians Niels Henrik Abel and Évariste Galois in algebra. Sylow theorems and p-groups, known as ''Sylow subgroups'', are fundamental in finite groups. By profession, Sylow was a teacher at the Frederiksborg Latin School for 40 years from 1858 to 1898, and then a professor at the University of Oslo for 20 years from 1898 to 1918. Despite the isolation in Frederiksborg, Sylow was an active member of the mathematical world. He wrote a total of approximately 25 mathematical and biographical works, corresponded with many of the leading mathematicians of the time, and was an able co-editor of ''Acta Mathematica'' from the journal's start in 1882. He was also elected into the Norwegian Academy of Science and Letters in 1868, a corresponding member of the Academy of Scienc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oslo
Oslo ( , , or ; sma, Oslove) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of in 2019, and the metropolitan area had an estimated population of in 2021. During the Viking Age the area was part of Viken. Oslo was founded as a city at the end of the Viking Age in 1040 under the name Ánslo, and established as a ''kaupstad'' or trading place in 1048 by Harald Hardrada. The city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 reduced its influence. After being destroyed by a fire in 1624, during the reign of King Christian IV, a new city was built closer to Akershus Fortress and named Christiania in honour of the king. It became a municipality ('' formannskapsdistrikt'') on 1 January 1838. The city fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Academy Of Science And Letters
The Norwegian Academy of Science and Letters ( no, Det Norske Videnskaps-Akademi, DNVA) is a learned society based in Oslo, Norway. Its purpose is to support the advancement of science and scholarship in Norway. History The Royal Frederick University in Christiania was established in 1811. The idea of a learned society in Christiania surfaced for the first time in 1841. The city of Trondhjem had no university, but had a learned society, the Royal Norwegian Society of Sciences and Letters, established in 1760. The purpose of a learned society in Christiania was to support scientific studies and aid publication of academic papers. The idea of the Humboldt-inspired university, where independent research stood strong, had taken over for the instrumental view of a university as a means to produce civil servants. The city already had societies for specific professions, for instance the Norwegian Medical Society which was founded in 1833. However, these societies were open for both acad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equation
In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign . The word ''equation'' and its cognates in other languages may have subtly different meanings; for example, in French an ''équation'' is defined as containing one or more variables, while in English, any well-formed formula consisting of two expressions related with an equals sign is an equation. ''Solving'' an equation containing variables consists of determining which values of the variables make the equality true. The variables for which the equation has to be solved are also called unknowns, and the values of the unknowns that satisfy the equality are called solutions of the equation. There are two kinds of equations: identities and conditional equations. An identity is true for all values of the variables. A conditional equation is only true for particular values of the variables. An equation is written as two expressions, connected by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halden
Halden (), between 1665 and 1928 known as Fredrikshald, is both a town and a municipality in Viken county, Norway. The municipality borders Sarpsborg to the northwest, Rakkestad to the north and Aremark to the east, as well as the Swedish municipalities Strömstad, Tanum and Dals-Ed respectively to the southwest, south and southeast. The seat of the municipality, Halden is a border town located at the mouth of the Tista river on the Iddefjord, the southernmost border crossing between Norway and Sweden. The town of Halden is located about south of Oslo, north of Gothenburg, and east of the border crossing at Svinesund Bridge, Svinesund. History Evidence of early human settlements in this region of Norway have been found, particularly in the Svinesund area of the municipality where evidence of early settlements from the Nordic Bronze Age have been found. Named after a small farm ''Hallen'' ( en, "rise" or "slope") first mentioned in 1629, "Halden", became the city of ''Fred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacobi Elliptic Functions
In mathematics, the Jacobi elliptic functions are a set of basic elliptic functions. They are found in the description of the motion of a pendulum (see also pendulum (mathematics)), as well as in the design of electronic elliptic filters. While trigonometry, trigonometric functions are defined with reference to a circle, the Jacobi elliptic functions are a generalization which refer to other conic sections, the ellipse in particular. The relation to trigonometric functions is contained in the notation, for example, by the matching notation \operatorname for \sin. The Jacobi elliptic functions are used more often in practical problems than the Weierstrass elliptic functions as they do not require notions of complex analysis to be defined and/or understood. They were introduced by . Carl Friedrich Gauss had already studied special Jacobi elliptic functions in 1797, the lemniscate elliptic functions in particular, but his work was published much later. Overview There are twelve Jacob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Gustav Jacob Jacobi
Carl Gustav Jacob Jacobi (; ; 10 December 1804 – 18 February 1851) was a German mathematician who made fundamental contributions to elliptic functions, dynamics, differential equations, determinants, and number theory. His name is occasionally written as Carolus Gustavus Iacobus Iacobi in his Latin books, and his first name is sometimes given as Karl. Jacobi was the first Jewish mathematician to be appointed professor at a German university. Biography Jacobi was born of Ashkenazi Jewish parentage in Potsdam on 10 December 1804. He was the second of four children of banker Simon Jacobi. His elder brother Moritz von Jacobi would also become known later as an engineer and physicist. He was initially home schooled by his uncle Lehman, who instructed him in the classical languages and elements of mathematics. In 1816, the twelve-year-old Jacobi went to the Potsdam Gymnasium, where students were taught all the standard subjects: classical languages, history, philology, mathem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ole Jacob Broch
Ole Jacob Broch (14 January 1818 – 5 February 1889) was a Norwegian mathematician, physicist, economist and government minister. Biography Broch was born at Fredrikstad in Østfold, Norway. He was the son of war commissary Johan Jørgen Broch (1791–1860) and Jensine Laurentze Bentzen (1790–1877) and the brother of the orientalist and linguist, Jens Peter Broch. He attended Kristiansand Cathedral School and showed a talent for mathematics at an early age. He attended the Overlærer Møller Institute in Christiania (now Oslo) and later studied at the University of Christiania (now University of Oslo). He also traveled abroad for studies in Paris, Berlin and Königsberg, during which he developed an interest in optics and statistics. After returning to Norway, he worked with his friend and colleague Hartvig Nissen to found the school Hartvig Nissens skole in 1843, which were to have an emphasis on natural sciences and modern languages. After finishing his doctorate in 1847 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hartvig Nissen
Ole Hartvig Nissen (17 April 1815 – 4 February 1874) was a Norwegian philologist and educator. He founded Nissen's Girls' School in Christiania in 1849. In 1865 he became director-general in the Ministry of Education, while remaining one of three joint headmasters of Nissen's Girls' School until 1872. In 1873 he was appointed to the prestigious position as rector of Oslo Cathedral School. Personal life Hartvig Nissen was born in Melhus as a son of Lutheran priest, Peder Schjelderup Nissen (1775–1826) and Bolette Margrethe Musæus (1774–1859). He was a grandson of Martinus Nissen and first cousin of Rasmus Tønder Nissen. He was the 8th child in his family of 10 children. His great-grandfather Niels Hansen Nissen was born in Fredericia in Denmark and moved to Trondheim in Norway, where he became a merchant. "Nissen" is a patronymic surname meaning "son of Nis," Nis being a form of Niels used in Jutland. In June 1843 in Christiania he married Karen Magdalena Aas (1820– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hartvig Nissen School
The Hartvig Nissen School ( no, Hartvig Nissens skole), informally referred to as Nissen, is a gymnasium in Oslo, Norway. It is located in the neighborhood Uranienborg in the affluent West End borough of Frogner. It is Norway's oldest high school for girls and is widely considered one of the country's two most prestigious high schools alongside the traditionally male-only Oslo Cathedral School; its alumni include many famous individuals and two members of the Norwegian royal family. Originally named Nissen's Girls' School, it was founded by Hartvig Nissen and was originally a private girls' school which was owned by its headmasters and which served the higher bourgeoisie. The school formerly also had its own teachers college. The school and its teachers college have the distinction of being both the first gymnasium and the first higher education institution in Norway which admitted females, and the school and its owners played a key role in promoting female education during th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hvem Er Hvem?
''Hvem er hvem?'' ( en, Who is Who?) was a Norwegian book series, presenting facts about notable persons from Norway. The first edition was issued in 1912, and the 14th edition came in 1994. In the 2008 edition, edited by Knut Olav Åmås, one thousand persons were selected for presentation. About one third of the articles are longer, signed biographies, while the rest have a shorter, more encyclopedic format. Edition history *1912 (First edition, edited by Chr. Brinchmann, Anders Daae and K.V. Hammer). 3,500 biographies. *1930 (2nd edition, edited by Hjalmar Steenstrup). 3,250 biographies, of which 1,750 are new. *1934 (3rd edition, edited by Hjalmar Steenstrup) *1938 (4th edition, edited by Hjalmar Steenstrup) *1948 (5th edition, edited by Harald Gram and Bjørn Steenstrup). *1950 (6th edition, edited by Harald Gram and Bjørn Steenstrup) *1955 (7th edition, edited by Harald Gram and Bjørn Steenstrup) *1959 (8th edition, edited by Harald Gram and Bjørn Steenstrup) *1964 (9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnomonics
Gnomonics (from the ancient Greek word γνώμων, , meaning 'interpreter, discerner') is the study of the design, construction and use of sundials. The foundations of gnomonics were known to the ancient Greek Anaximander (ca. 550 BCE), which augmented the science of shadows brought back from Egypt by Thales of Miletus. Gnomonics was used by Greek and Roman architects from 25 BCE for the design of buildings. Modern gnomonics has its root in the nascent European astronomy of the 16th Century. The first works, in Latin, were published by Sebastian Münster in 1531 and Oronce Fine in 1532, rapidly followed by books in French. At the end of the 17th century, gnomonics developed notably in the application of spherical trigonometry. Several methods, both graphical and analytical, were published in books which allowed the creation of sundials of greater or lesser precision to be placed on buildings and in gardens. In his ''Histoire de la Gnomonique ancienne et moderne'', Jean-Étienn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Publishing
Academic publishing is the subfield of publishing which distributes academic research and scholarship. Most academic work is published in academic journal articles, books or theses. The part of academic written output that is not formally published but merely printed up or posted on the Internet is often called "grey literature". Most scientific and scholarly journals, and many academic and scholarly books, though not all, are based on some form of peer review or editorial refereeing to qualify texts for publication. Peer review quality and selectivity standards vary greatly from journal to journal, publisher to publisher, and field to field. Most established academic disciplines have their own journals and other outlets for publication, although many academic journals are somewhat interdisciplinary, and publish work from several distinct fields or subfields. There is also a tendency for existing journals to divide into specialized sections as the field itself becomes more spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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