Hahn may refer to:

Places

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 Berosu ...

, 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 Hahn Fire Apparatus, also known as Hahn Motors, was a fire engines and apparatus and truck builder formerly located in Hamburg, Pennsylvania, Hamburg, within Berks County, Pennsylvania. 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 sprin ...

, a German surname (including a list of people with the name) *

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 y ...

(1805–1880), German author *

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 name of the German-Baltic-Russian noble family

Other uses

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 fir ...

, a mathematical formal infinite series *

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 ...

, theory in

functional analysis Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (for example, Inner product space#Definition, inner product, Norm (mathematics ...

Places

Businesses

Other uses

See also