|
Hahn
Hahn may refer to: Places *Hahn (crater), on the Moon *Hahn (Holzhausen), a hill in Hesse, Germany *Hahn, Rhineland-Palatinate, a municipality in Germany **Hahn Air Base, a former frontline NATO facility near Hahn **Frankfurt–Hahn Airport * Hahn, Texas, U.S. Businesses *The Hahn Company, a defunct American shopping center owner and developer *Hahn Group, a German industrial company *Hahn Brewery, a brewery in Sydney, Australia *Hahn Fire Apparatus, a defunct American manufacturer of fire engines and buses People *Hahn (surname), a German surname (including a list of people with the name) *Ida, Countess von Hahn-Hahn (1805–1880), German author *von Hahn, the name of the German-Baltic-Russian noble family Other uses *Hahn series, a mathematical formal infinite series *Hahn–Banach theorem, theory in functional analysis See also * *Han (other) * Hann (other) *Hahne Hahne is a German surname. Notable people with the surname include: * Hans Hahne (archaeolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn–Banach Theorem
In functional analysis, the Hahn–Banach theorem is a central result that allows the extension of bounded linear functionals defined on a vector subspace of some vector space to the whole space. The theorem also shows that there are sufficient continuous linear functionals defined on every normed vector space in order to study the dual space. Another version of the Hahn–Banach theorem is known as the Hahn–Banach separation theorem or the hyperplane separation theorem, and has numerous uses in convex geometry. History The theorem is named for the mathematicians Hans Hahn and Stefan Banach, who proved it independently in the late 1920s. The special case of the theorem for the space C , b/math> of continuous functions on an interval was proved earlier (in 1912) by Eduard Helly, and a more general extension theorem, the M. Riesz extension theorem, from which the Hahn–Banach theorem can be derived, was proved in 1923 by Marcel Riesz. The first Hahn–Banach theore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frankfurt–Hahn Airport
Hahn Airporthahn-airport.de retrieved 30 April 2025 () , also colloquially known and formerly officially branded as Frankfurt-Hahn Airport, is an in the municipality of Hahn, , Germany. The airport is from the town of Kirchberg and from both [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn (surname)
Hahn is a German surname. Notable people with the surname include: * Alfred Hahn (1890–1964), American architect * André Hahn, German footballer * André Hahn (born 1963), German politician * Archie Hahn (athlete) (1880–1955), American sprinter * Archie Hahn (actor) (born 1941), American actor * Arthur A. Hahn (1886–1959), American businessman and politician * August Hahn (1792–1863), German Protestant theologian * Bernard Hahn (1860–1931), American politician * Billy Hahn (1955–2023), American basketball coach * Bob Hahn (1925–2009), American basketball player * Carl Hugo Hahn (1818–1895), German missionary in Namibia *Carl Wilhelm Hahn (1898–1982), German journalist and historian *Carl Wilhelm Hahn (1786–1835), German zoologist * Dave Hahn (born 1961), American climber * David Hahn, American known as the "Radioactive Boy Scout" * David Hahn (American politician), American politician from Nebraska * David Hahn (cartoonist), American cartoonist * Dirk Meinerts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Von Hahn
The House of Hahn (originally Hane and Hanen) was an ancient German-Baltic noble family which was prominent in the Duchy of Courland and Semigallia and on the Baltic Island Ösel. It was founded in 1230 and existed until 1951. It was also part of the old Mecklenburg noble family, first mentioned on October 30, 1230. The Mecklenburg clan branched out at the turn of the 14th century into a Mecklenburg and a Courland clan. Later, the family carried the title Baron or Baron (Baroness, Baroness, Freifrau, Freiin), which was the highest title, which the family ever held. Ludolf Hahn (around 1300) is mentioned as the ancestor of the Baltic lines, whose descendants later established their residence with Heinrich von Hahn (around 1518) in Postenden near Talsen. Johann August von Hahn (around 1725–1799) descended from the Saaremaa von Hahns. Both family lines carried the same coat of arms. Origins The origin of the name and the family is not clear. The first Hahn, with whom this coat of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ida, Countess Von Hahn-Hahn
Countess Ida von Hahn-Hahn (; 22 June 1805 – 12 January 1880) was a German author from a wealthy family who lost their fortune because of her father's eccentric spending. She defied convention by living with Adolf von Bystram unmarried for 21 years. Her writings about the German aristocracy were greatly favored by the general public of her time. Ida von Hahn-Hahn often wrote about the tragedies of the soul and was influenced by the French novelist George Sand. She "was an indefatigable campaigner for the emancipation of women" and her writings include many strong female characters. Biography She was born at Tressow, in the duchy of Mecklenburg-Schwerin. She was the daughter of Count (1782 – 21 May 1857 Altona) of the von Hahn family, who was well known for his enthusiasm for stage productions, upon which he squandered a large portion of his fortune. In his old age, he was obliged to support himself by managing a provincial company and died in poverty. In 1826, Ida married ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn, Rhineland-Palatinate
Hahn () is an – a municipality belonging to a , a kind of collective municipality – in the Rhein-Hunsrück-Kreis (district) in Rhineland-Palatinate, Germany. It belongs to the ''Verbandsgemeinde'' of Kirchberg, whose seat is in the like-named town. The name Hahn is well known as being the name shared with Frankfurt-Hahn Airport, which arose after 1993 from the United States Air Force’s Hahn Air Base once the Americans had withdrawn. Geography Location The municipality lies on a ridge in the part of the Hunsrück facing the Moselle on the Drainage divide, watershed between the Nahe (Rhine), Nahe and the Moselle, and also on the ''Hunsrückhöhenstraße'' ("Hunsrück Heights Road", a scenic road across the Hunsrück built originally as a military road on Hermann Göring's orders). The Wilwersbach rises in Hahn. History Within Hahn’s municipal limits are traces of Ancient Rome, Roman and Franks, Frankish settlement. The placename Hahn, originally written ''Hagene'' (112 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn Brewery
Hahn Brewery was established by Dr Charles Hahn in 1988 at an old factory site in the suburb of Camperdown in Sydney, New South Wales, Australia. Originally focussing on pale lager Pale lager is a pale-to- golden lager beer with a well- attenuated body and a varying degree of noble hop bitterness. In the mid-19th century, Gabriel Sedlmayr took British pale ale brewing and malt making techniques back to the Spaten Bre ...s, such as Hahn Premium and Hahn Premium Light, targeted at the mid-price sector of the market, the 1991-93 recession resulted in reduced demand, and led to the brewery being purchased by Australia's second largest brewer Lion (Australasian company), Lion in 1993. A lower cost beer called Sydney Bitter was produced, with reasonable success. It has launched two new beers since then: Hahn Super Dry in 2006 and Hahn Super Dry 3.5 in 2009. Hahn was appointed as the Chief Brewer of Lion Co which, at the time, operated eight breweries in Australia and New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn Group
The Hahn Automation Group Holding GmbH is a corporate group specializing in industrial automation technology and robotics. The headquarters are located in Rheinböllen, Germany and Frankfurt am Main. History Thomas Hähn founded the company Hähn Engineering in 1992 with three employees. After the company was renamed to Hahn Automation, the first foreign location in the United States (USA) was established in 2000. In 2014, RAG-Stiftung Beteiligungsgesellschaft acquired a majority stake in Hahn Automation. As a result of this investment, the Hahn Group was founded as a holding company. In 2016, Hahn Holding GmbH was established. At that time, Hahn Automation, Wemo Automation, Hahn Robotics, and Waldorf Technik were part of the company. In 2017, a renaming to Hahn Group took place. Invotec was incorporated into the Hahn Group in 2017. GeKu Automatisierungssysteme, Kitov Systems, and Hahn Automation UK were added to the company in 2018. In 2019, the companies DFT Maschinenbau, Walt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn, Texas
Hahn or Hahn Prairie is an unincorporated community in northwestern Wharton County, in the U.S. state of Texas. The tiny community is located at the intersection of Farm to Market Road 1160 (FM 1160) and Farm to Market Road 2546, (FM 2546) northwest of El Campo. There are no road signs identifying the site, but the nearby Hahn Cemetery is marked and there is a small cluster of homes around the junction. The surrounding farmland is dotted by a number of natural gas Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium ... wells. History The ''Handbook of Texas'' article writes of Hahn Prairie in the past tense. Hahn Prairie was located on the old Hahn Ranch, northwest of Wharton in northwestern Wharton County. A post office was established in the settlement in 1897. By 1905 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn Series
In mathematics, Hahn series (sometimes also known as Hahn–Mal'cev–Neumann series) are a type of formal series, formal infinite series. They are a generalization of Puiseux series (themselves a generalization of formal power series) and were first introduced by Hans Hahn (mathematician), Hans Hahn in 1907 (and then further generalized by Anatoly Maltsev and Bernhard Neumann to a non-commutative setting). They allow for arbitrary exponents of the Indeterminate (variable), indeterminate so long as the set supporting them forms a well-ordered subset of the Valuation (algebra), value group (typically \mathbb or \mathbb). Hahn series were first introduced, as groups, in the course of the mathematical proof, proof of the Hahn embedding theorem and then studied by him in relation to Hilbert's second problem. Formulation The field (mathematics), field of Hahn series K\left[\left[T^\Gamma\right]\right] (in the indeterminate T) over a field K and with value group \Gamma (an ordered group) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn Air Base
Hahn Air Base was a United States Air Force (USAF) installation near Lautzenhausen in Germany for over forty years. The major unit was the 50th Tactical Fighter Wing of the USAF during most of the years it was active. In the mid-1970s, Hahn Air Base, situated 1650 feet above sea level in the Hunsrück mountains of western Germany, was home for approximately 9000 American personnel including USAF, U.S. Army, Department of Defense civilians, and military dependent family members. History Groundwork for the construction of Hahn Air Base was begun in 1951, when approximately 1280 acres of land were acquired from the French occupation forces in West Germany. Construction of the runway and airdrome facilities was performed by the French.Hahn Air Force Base new personnel welcome pamphlet November 1974 The 7356th Air Base Squadron was designated to complete the work on the base and prepare for the arrival of the 50th Fighter-Bomber Wing from Clovis Air Force Base, New Mexico· When ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hahn (crater)
Hahn is a Lunar craters, lunar impact crater that is located near the northeastern limb of the Moon. The crater appears oval when viewed from the Earth due to foreshortening. It is located less than one crater diameter to the southeast of Berosus (crater), Berosus, a slightly smaller formation. The inner wall of Hahn contains a system of wiktionary:terrace, terraces, particularly in the southern half. A smaller crater lies across the northwest rim, forming a break that reaches the interior floor. The interior floor has a region of lower albedo in the northern half, making it darker in appearance than the southern section of the floor. At the midpoint of the interior is an elongated central ridge, with the longer extent oriented north–south. The floor is also marked by several tiny craterlets. Satellite craters By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Hahn. References * * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
