Theodorus Dekker | |
---|---|
Born | Theodorus Jozef Dekker 1 March 1927 |
Died | November 25, 2021 94) | (aged
Alma mater | University of Amsterdam (PhD) |
Known for | Dekker's algorithm |
Scientific career | |
Fields | Math |
Institutions | University of Amsterdam |
Thesis | Paradoxical Decompositions of Sets and Spaces |
Doctoral advisor | Johannes de Groot |
Theodorus Jozef Dekker (Dirk Dekker, 1 March 1927 - 25 November 2021) [1] was a Dutch mathematician.
Dekker completed his Ph.D. degree from the University of Amsterdam in 1958. His thesis was titled "Paradoxical Decompositions of Sets and Spaces".
Dekker invented an algorithm that allows two processes to share a single-use resource without conflict, using only shared memory for communication, named Dekker's algorithm.
Dekker's algorithm is the first known correct solution to the mutual exclusion problem in concurrent programming where processes only communicate via shared memory. The solution is attributed to Dutch mathematician Th. J. Dekker by Edsger W. Dijkstra in an unpublished paper on sequential process descriptions and his manuscript on cooperating sequential processes. It allows two threads to share a single-use resource without conflict, using only shared memory for communication.
Heerhugowaard is a city in the Netherlands, in the province of North Holland and the region of West Friesland.
Johannes Theodorus "Jan" Toorop was a Dutch painter who worked in various styles, including Symbolism, Art Nouveau, and Pointillism. His early work was influenced by the Amsterdam Impressionism movement.
Jan Tinbergen was a Dutch economist who was awarded the first Nobel Memorial Prize in Economic Sciences in 1969, which he shared with Ragnar Frisch for having developed and applied dynamic models for the analysis of economic processes. He is widely considered to be one of the most influential economists of the 20th century and one of the founding fathers of econometrics.
Eduard Douwes Dekker, better known by his pen name Multatuli, was a Dutch writer best known for his satirical novel Max Havelaar (1860), which denounced the abuses of colonialism in the Dutch East Indies. He is considered one of the Netherlands' greatest authors.
Frederick de Houtman was a Dutch explorer, navigator, and colonial governor who sailed on the first Dutch expedition to the East Indies from 1595 until 1597, during which time he made observations of the southern celestial hemisphere and contributed to the creation of 12 new southern constellations.
The Centrum Wiskunde & Informatica is a research centre in the field of mathematics and theoretical computer science. It is part of the institutes organization of the Dutch Research Council (NWO) and is located at the Amsterdam Science Park. This institute is famous as the creation site of the programming language Python. It was a founding member of the European Research Consortium for Informatics and Mathematics (ERCIM).
In numerical analysis, Brent's method is a hybrid root-finding algorithm combining the bisection method, the secant method and inverse quadratic interpolation. It has the reliability of bisection but it can be as quick as some of the less-reliable methods. The algorithm tries to use the potentially fast-converging secant method or inverse quadratic interpolation if possible, but it falls back to the more robust bisection method if necessary. Brent's method is due to Richard Brent and builds on an earlier algorithm by Theodorus Dekker. Consequently, the method is also known as the Brent–Dekker method.
Jozef Israëls was a Dutch painter. He was a leading member of the group of landscape painters referred to as the Hague School and was, during his lifetime, "the most respected Dutch artist of the second half of the nineteenth century."
The Hague School is a group of artists who lived and worked in The Hague between 1860 and 1890. Their work was heavily influenced by the realist painters of the French Barbizon school. The painters of the Hague school generally made use of relatively somber colors, which is why the Hague School is sometimes called the Gray School.
Theodorus Jacobus Frelinghuysen was a German-American Dutch Reformed minister, theologian and the progenitor of the Frelinghuysen family in the United States of America. Frelinghuysen is most remembered for his religious contributions in the Raritan Valley during the beginnings of the First Great Awakening. Several of his descendants became influential theologians and politicians throughout American history.
Amsterdam Impressionism was an art movement in late 19th-century Holland. It is associated especially with George Hendrik Breitner and is also known as the School of Allebé.
Hartog Plate or Dirk Hartog's Plate is either of two pewter plates, although primarily the first, which were left on Dirk Hartog Island during a period of European exploration of the western coast of Australia prior to European settlement there. The first plate, left in 1616 by Dutch explorer Dirk Hartog, is the oldest-known artifact of European exploration in Australia still in existence. A replacement, copying the text of the original plus some new text, was left in 1697 – the original dish returned to the Netherlands, where it is on display in the Rijksmuseum. Further additions at the site, in 1801 and 1818, led to the location being named Cape Inscription.
Dekker is a Dutch occupational surname equivalent to English Thatcher. Notable people with the surname include:
Theodoros or Theodorus is a masculine given name, from which Theodore is derived. The feminine version is Theodora. It may refer to:
Willem Andreas Theodorus Schelfhout was a Dutch chess master.
August Allebé was an artist and teacher from the Northern Netherlands. His early paintings were in a romantic style, but in his later work he was an exponent of realism and impressionism. He was a major initiator and promoter of Amsterdam Impressionism, the artist's association St. Lucas, and the movement of the Amsterdamse Joffers. Amsterdam Impressionism – sometimes referred to by art historians as the School of Allebé – was the counterflow to the very strong Hague School in the movement of Dutch Impressionism. As a professor at the Royal Academy of Amsterdam he fostered a cosmopolitan attitude toward art and the promotion and motivation of his students, and provided a significant stimulus to developments in modern art.
Hendrik Adriaan Christiaan Dekker was a 19th-century Dutch painter and lithographer.
Anarchism in Indonesia has its roots in the anti-colonial struggle against the Dutch Empire. It became an organized movement at the behest of Chinese anarchist immigrants, who played a key part in the development of the workers' movement in the country. The anarchist movement was suppressed, first by the Japanese occupation of the Dutch East Indies, then by the successive regimes of Sukarno and Suharto, before finally re-emerging in the 1990s.
Passing Mother's Grave, also known as Passing the Churchyard, is an oil painting on canvas made in 1856 by Jozef Israëls, a Dutch realist artist and a representative of the Hague School of painters. The subject of the painting is a widowed fisherman walking past his deceased wife's grave with his two children.