See also: Everett
Hugh Everett is a American physicist , born the November 11th 1930 with Maryland or Washington DC and dead the July 19th 1982 with Fairfax. It was made famous for its theory known since under the name of Théorie of Everett. He also invented a generalization of the method of the multiplying of Lagrange giving access to the optimization of discrete functions under constraints.
BiographyHugh Everett (or Hugh Everett III) was born the very same day where Albert Einstein publishes his test One Religion And Science .
Thesis of doctorateHe studies chemical engineering, then three years the Mathématiques and the Physique with the Université of Princeton; he meets in particular Niels Bohr. He starts to outline what will become its theory and in April 1956 he supports his Thèse of doctorate, supported by John Wheeler and publishes in 1957 an article on its theory of the relative states of the quantum Mécanique. John Wheeler, concerned of his image of serious, accepts badly that one speaks about the theory about Everett and Wheeler and the fact knowledge. The positions will be permuted with time: once its taken down thesis and for lack of appropriations to look further into its idea, Hugh Everett will leave to carry out an easy life like independent, while John Wheeler will let himself allure little by little by this idea that it at the beginning had rejected… and will end up considering this theory seriously. Everett had obtained its pH. D. with mention very well.
Multipliers of EverettHaving already worked to the university on the application of the plays for defense, it enters to the Institute for the Analyzes of Defense and Marie with the secretary who had typed his thesis, Nancy Gore. In 1963, it discovers that the method of the multiplying of Lagrange hitherto used for continuous functions and derivable remains usable, with the help of a change of interpretation, on continuous functions not , not derivable and not convex to be maximized or minimize under constraints… subject knowing all the same to find an optimum in the absence of constraints.
However this case of figure represents the main part of the problems of Operations research against which one butts at the time (trucks, pallets, warehouses, containers, cuttings, ammunition…). Including/understanding the potential of its method and the benefit which it can draw, it founds its first company, Lambda (letter Greek by which one indicates usually the multipliers which will name some time of Everett or of Lagrange generalized . One more readily names it since method of the penalties .
Close methods existed already in a heuristic way , but the contribution of Everett is to have provided an algorithm of which it showed and quantified the Convergence towards the good values of lambda of one iteration to the following one.
See Optimization (mathematics) #Technic
'' Robin B.S. Brooks '' and '' A.M. Geoffrion '' will discover then a method making it possible to obtain these coefficients by the linear Programming in certain well conditioned cases.
DiversificationIt is devoted thereafter entirely to research for defense and the nuclear armament - in particular publishing an article on the optimization of the number of killed during a nuclear bombardment. True Hacker, it founds in the Années 1970 a company of data processing, Mono-Wave , and becomes millionaire.
In 1976, its theory is redécouverte by the scientific community following a series of articles of John Wheeler. It becomes famous starting from 1978, and expresses in 1979 its intention to return to its work of quantum Mécanique. In 1982, his/her son Mark (the Everett Mark of the group Eels), finds it dead of an heart attack.
The topic corresponding of the Multivers , where all that is physically allowed by the equations of quantum mechanics is carried out face, was in any case abundantly used starting from 1957 by the Science-fiction, in particular in:
- Worlds of Imperium ( Worlds off the Imperium ) of Keith Laumer, (1962);
- the Tree of time of Damon Knight, (1963);
- the Hole in the zero of Michael Kennedy Joseph, (1967).
- the ultra-short news F.I.N. , of Fredric Brown, in Phantom and farfafouilles;
- " Timeline" , of Michael Crichton, ().
Many years before, the final chapter of the book of Rene Barjavel the imprudent Traveller (1943) had already posed makes in filigree this question of it, leaving however to the reader, in his conclusion, the care to deepen it itself. It since was re-elected: Paradox of the grandfather.
- At twelve years, it writes a letter with the father of the Theory of relativity, requiring of him what made hold the universe together. Against any waiting, it receives an answer: “Dear Hugh, there exists neither irresistible force nor body indéplaçable. But it would seem that there exists an obstinate boy who victoriously forced his way through strange difficulties caused by him for that. In a friendly way, A. Einstein”.
- His/her son Mark Oliver Everett is the singer of the group Eels.
Biography of Everett per Eugene Shikhovtsev with M.I.T. lodged by max Tegmark
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