De Sitter (disambiguation)

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Willem de Sitter (1872–1934) was a Dutch mathematician, physicist and astronomer.

Willem de Sitter Dutch cosmologist

Willem de Sitter was a Dutch mathematician, physicist, and astronomer.

De Sitter may also refer to:

De Sitter (crater) impact crater

De Sitter is a lunar impact crater that is located near the northern limb of the Moon, to the north of the Baillaud–Euctemon crater pair. Due to its location, this crater appears very foreshortened when viewed from the Earth, limiting the detail that can be viewed. The crater also receives sunlight at a low angle, when it is on the sunlit side.

People with the surname

Ulbo de Sitter Dutch geologist

Lamoraal Ulbo de Sitter was a Dutch geologist at Leiden University, where he was the founder of the school of structural geology. De Sitter was known for his research on the geology of the Alps and Pyrenees. His father was the astronomer Willem de Sitter (1872–1934), and one of his sons was the Dutch sociologist Ulbo de Sitter (1930–2010).

Lamoraal Ulbo de Sitter was a Dutch sociologist and Professor of business administration at the Radboud University Nijmegen, known for his seminal work in the field of sociotechnical system in the Netherlands.

Jan in t Veld Dutch aeronautical and mechanical engineer

Jan in 't Veld was a Dutch aerospace engineer and professor of industrial organization at the Mechanical Engineering Department of the Technical University of Delft. In the Netherlands he was one of the pioneers of the application of systems theory in business administration and management.

See also

In mathematics and physics, a de Sitter space is the analog in Minkowski space, or spacetime, of a sphere in ordinary Euclidean space. The n-dimensional de Sitter space, denoted dSn, is the Lorentzian manifold analog of an n-sphere ; it is maximally symmetric, has constant positive curvature, and is simply connected for n at least 3. De Sitter space and anti-de Sitter space are named after Willem de Sitter (1872–1934), professor of astronomy at Leiden University and director of the Leiden Observatory. Willem de Sitter and Albert Einstein worked closely together in Leiden in the 1920s on the spacetime structure of our universe.

In mathematics and physics, n-dimensional anti-de Sitter space (AdSn) is a maximally symmetric Lorentzian manifold with constant negative scalar curvature. Anti-de Sitter space and de Sitter space are named after Willem de Sitter (1872–1934), professor of astronomy at Leiden University and director of the Leiden Observatory. Willem de Sitter and Albert Einstein worked together closely in Leiden in the 1920s on the spacetime structure of the universe.

De Sitter universe

A de Sitter universe is a cosmological solution to the Einstein field equations of general relativity, named after Willem de Sitter. It models the universe as spatially flat and neglects ordinary matter, so the dynamics of the universe are dominated by the cosmological constant, thought to correspond to dark energy in our universe or the inflaton field in the early universe. According to the models of inflation and current observations of the accelerating universe, the concordance models of physical cosmology are converging on a consistent model where our universe was best described as a de Sitter universe at about a time seconds after the fiducial Big Bang singularity, and far into the future.

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Stein may refer to:

AdS/CFT correspondence duality between theories of gravity on anti-de Sitter space and conformal field theories

In theoretical physics, the anti-de Sitter/conformal field theory correspondence, sometimes called Maldacena duality or gauge/gravity duality, is a conjectured relationship between two kinds of physical theories. On one side are anti-de Sitter spaces (AdS) which are used in theories of quantum gravity, formulated in terms of string theory or M-theory. On the other side of the correspondence are conformal field theories (CFT) which are quantum field theories, including theories similar to the Yang–Mills theories that describe elementary particles.

Hendrik Petrus Berlage Dutch architect (1856-1934)

Hendrik Petrus Berlage was a prominent Dutch architect.

Euctemon (crater) impact crater

Euctemon is a lunar impact crater that is located in the northern part of the Moon, along the northwest rim of the crater Baillaud. To the southwest of Euctemon is the large walled plain Meton, and to the north-northeast lies the crater De Sitter. Due to its location, Euctemon appears foreshortened when viewed from the Earth.

Zeeman may refer to:

Deutsch or Deutsche may refer to:

In mathematical physics, de Sitter invariant special relativity is the speculative idea that the fundamental symmetry group of spacetime is the indefinite orthogonal group SO(4,1), that of de Sitter space. In the standard theory of general relativity, de Sitter space is a highly symmetrical special vacuum solution, which requires a cosmological constant or the stress–energy of a constant scalar field to sustain.

Ulbo Garvema is a 1917 Dutch silent film directed by Maurits Binger.

Maurits Binger Film director, Film producer, Screenwriter

Maurits Binger was a Dutch film director, producer and screenwriter of the silent era. He directed 39 films between 1913 and 1922 and is considered one of the pioneers of fictional films in the Netherlands. Binger's studio and base of operations was in Haarlem, North Holland. Between 1919 and 1923 he was managing director of Anglo-Hollandia an attempt to break into the larger British market. There is a film institute in the Netherlands in his name. He is sometimes referred to as Maurice Binger.

Lola Cornero actress

Lola Cornero was a Dutch film actress of the silent era. She appeared in 17 films between 1916 and 1920.

Caille, the French word for quail, may refer to:

<i>The Shipbuilder and his Wife</i> painting by Rembrandt

The Shipbuilder and his Wife is a 1633 painting by Rembrandt. The sitters were identified in 1970 as Jan Rijcksen (1560/2-1637) and his wife Griet Jans Rijcksen. Rijcksen was a shareholder in the Dutch East India Company, and became its master shipbuilder in 1620. The painting has been in the Royal Collection since 1811.