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Eugène Fabry
Charles Eugène Fabry (; 16 October 18566 October 1944) was a French mathematician. Fabry is best known for studying the singularities of analytic functions, including proving the Fabry gap theorem. Biography Eugène Fabry, born in Marseille, was the second of five sons in his family. His brothers included physicist Charles Fabry and astronomer Louis Fabry. He became professor of analysis at Aix-Marseille University and the University of Montpellier, and a corresponding member of the French Academy of Sciences. He was the 1930 recipient of the Prix Francoeur The Prix Francoeur, or Francoeur Prize, was an award granted by the Institut de France, Academie des Sciences, Fondation Francoeur to authors of works useful to the progress of pure and applied mathematics. Preference was given to young scholars ... of the French Academy of Sciences, "for his work on the singularities of analytical functions". References 1856 births 1944 deaths {{France-mathematician-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marseille
Marseille (; ; see #Name, below) is a city in southern France, the Prefectures in France, prefecture of the Departments of France, department of Bouches-du-Rhône and of the Provence-Alpes-Côte d'Azur Regions of France, region. Situated in the Provence region, it is located on the coast of the Mediterranean Sea, near the mouth of the Rhône river. Marseille is the List of communes in France with over 20,000 inhabitants, second-most populous city proper in France, after Paris, with 873,076 inhabitants in 2021. Marseille with its suburbs and exurbs create the Aix-Marseille-Provence Metropolis, with a population of 1,911,311 at the 2021 census. Founded by Greek settlers from Phocaea, Marseille is the oldest city in France, as well as one of Europe's List of oldest continuously inhabited cities, oldest continuously inhabited settlements. It was known to the ancient Greeks as ''Massalia'' and to ancient Romans, Romans as ''Massilia''. Marseille has been a trading port since ancient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analytic Functions
In mathematics, an analytic function is a function that is locally given by a convergent power series. There exist both real analytic functions and complex analytic functions. Functions of each type are infinitely differentiable, but complex analytic functions exhibit properties that do not generally hold for real analytic functions. A function is analytic if and only if for every x_0 in its domain, its Taylor series about x_0 converges to the function in some neighborhood of x_0 . This is stronger than merely being infinitely differentiable at x_0 , and therefore having a well-defined Taylor series; the Fabius function provides an example of a function that is infinitely differentiable but not analytic. Definitions Formally, a function f is ''real analytic'' on an open set D in the real line if for any x_0\in D one can write f(x) = \sum_^\infty a_ \left( x-x_0 \right)^ = a_0 + a_1 (x-x_0) + a_2 (x-x_0)^2 + \cdots in which the coefficients a_0, a_1, \dots ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prix Francoeur
The Prix Francoeur, or Francoeur Prize, was an award granted by the Institut de France, Academie des Sciences, Fondation Francoeur to authors of works useful to the progress of pure and applied mathematics. Preference was given to young scholars or to geometricians not yet established. It was established in 1882 and has been discontinued. Prize winners * 1882–1888 — Emile Barbier * 1889–1890 — Maximilien Marie * 1891–1892 — Augustin Mouchot * 1893 — Guy Robin * 1894 — J. Collet * 1895 — Jules Andrade * 1896 — Alphonse Valson * 1897 — Guy Robin * 1898 — Aimé Vaschy * 1899 — Le Cordier * 1900 — Edmond Maillet * 1901 — Léonce Laugel * 1902–1904 — Emile Lemoine * 1905 — Xavier Stouff * 1906–1912 — Emile Lemoine * 1913–1914 — A. Claude * 1915 — Joseph Marty * 1916 — René Gateaux * 1917 — Henri Villat * 1918 — Paul Montel * 1919 — Georges Giraud * 1920–1921 — René Baire * 1922 — Louis Antoine * 1923 — Gaston Bertran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Academy Of Sciences
The French Academy of Sciences (, ) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific method, scientific research. It was at the forefront of scientific developments in Europe in the 17th and 18th centuries, and is one of the earliest Academy of Sciences, Academies of Sciences. Currently headed by Patrick Flandrin (President of the academy), it is one of the five Academies of the . __TOC__ History The Academy of Sciences traces its origin to Colbert's plan to create a general academy. He chose a small group of scholars who met on 22 December 1666 in the King's library, near the present-day Bibliothèque nationale de France, Bibliothèque Nationale, and thereafter held twice-weekly working meetings there in the two rooms assigned to the group. The first 30 years of the academy's existence were relatively informal, since no statutes had as yet been laid down for the ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Montpellier
The University of Montpellier () is a public university, public research university located in Montpellier, in south-east of France. Established in 1220, the University of Montpellier is one of the List of oldest universities in continuous operation, oldest universities in the world. The university was split into three universities (the University of Montpellier 1, the Montpellier 2 University, University of Montpellier 2 and the Paul Valéry University, Montpellier III, Paul Valéry University Montpellier 3) for 45 years from 1970 until 2015 when it was subsequently reunified by the merger of the two former, with the latter, now named Paul Valéry University, Montpellier III, remaining a separate entity. History The university is associated with a papal bull issued by Pope Nicholas IV in 1289, combining various centuries-old schools into a university. The university is considerably older than its formal founding date, with the first statutes given by Conrad of Urach in 1220. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aix-Marseille University
Aix-Marseille University (AMU; ; formally incorporated as ) is a Public university, public research university located in the Provence region of southern France. It was founded in 1409 when Louis II of Anjou, List of rulers of Provence, Count of Provence, petitioned the Council of Pisa, Pisan Antipope Alexander V to establish the University of Provence, making it one of the List of oldest universities in continuous operation, oldest university-level institutions in the Francophone world. The institution came into its current form following a reunification of the University of Provence, the University of the Mediterranean and Paul Cézanne University. The reunification became effective on 1 January 2012, resulting in the creation of the largest university in the List of countries and territories where French is an official language, French-speaking world in terms of its student body, its faculty and staff, and its budget that currently stands at €750 million. The university is or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Fabry
Louis Fabry (20 April 1862 – 26 January 1939) was a French astronomer Biography Louis Fabry was born in Marseille in 1862 to a Provençal family with five boys. His brothers Charles, Eugène and Auguste were, respectively, a physicist, a mathematician and a magistrate. From childhood he showed a keen taste for astronomy and mathematics. He joined the École Polytechnique in 1880, before his brother Eugène and five years before his brother Charles. After receiving his licenciate, he became a student in the school of astronomy that Admiral Mouchez had just opened at the Paris Observatory. He was then sent to the Nice Observatory and remained there until 1890. It was during his stay in Nice he married and became widowed a few months after. Back in his hometown, he joined the Marseille Observatory Marseille Observatory () is an astronomical observatory located in Marseille, France, with a history that goes back to the early 18th century. In its 1877 incarnation, it was th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Fabry
Marie Paul Auguste Charles Fabry (; 11 June 1867 – 11 December 1945) was a French physicist working on optics. Together with Alfred Pérot he invented the Fabry–Pérot interferometer. He is also one of the co-discoverers of the ozone layer. Biography Charles Fabry was born in Marseille in 1867. He was the brother of astronomer Louis Fabry and mathematician Eugène Fabry. Studies Fabry graduated from the École Polytechnique in Paris and received his doctorate from the University of Paris in 1892, for his work on interference fringes, which established him as an authority in the field of optics and spectroscopy. In 1904, he was appointed Professor of Physics at the University of Marseille, where he spent 16 years. Career In optics, he discovered an explanation for the phenomenon of interference fringes. Together with his colleague Alfred Pérot he invented a new interferometer in 1899, now known as the Fabry–Pérot interferometer. He and Henri Buisson di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Singularity (mathematics)
In mathematics, a singularity is a point at which a given mathematical object is not defined, or a point where the mathematical object ceases to be well-behaved in some particular way, such as by lacking differentiability or analyticity. For example, the reciprocal function f(x) = 1/x has a singularity at x = 0, where the value of the function is not defined, as involving a division by zero. The absolute value function g(x) = , x, also has a singularity at x = 0, since it is not differentiable there. The algebraic curve defined by \left\ in the (x, y) coordinate system has a singularity (called a cusp) at (0, 0). For singularities in algebraic geometry, see singular point of an algebraic variety. For singularities in differential geometry, see singularity theory. Real analysis In real analysis, singularities are either discontinuities, or discontinuities of the derivative (sometimes also discontinuities of higher order derivatives). There are four kinds of discontinuities: ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlantic, North Atlantic, the French West Indies, and List of islands of France, many islands in Oceania and the Indian Ocean, giving it Exclusive economic zone of France, one of the largest discontiguous exclusive economic zones in the world. Metropolitan France shares borders with Belgium and Luxembourg to the north; Germany to the northeast; Switzerland to the east; Italy and Monaco to the southeast; Andorra and Spain to the south; and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. Its Regions of France, eighteen integral regions—five of which are overseas—span a combined area of and hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematical model, models, and mathematics#Calculus and analysis, change. History One of the earliest known mathematicians was Thales of Miletus (); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales's theorem. The number of known mathematicians grew when Pythagoras of Samos () established the Pythagorean school, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman math ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French People
French people () are a nation primarily located in Western Europe that share a common Culture of France, French culture, History of France, history, and French language, language, identified with the country of France. The French people, especially the native speakers of langues d'oïl from northern and central France, are primarily descended from Roman people, Romans (or Gallo-Romans, western European Celts, Celtic and Italic peoples), Gauls (including the Belgae), as well as Germanic peoples such as the Franks, the Visigoths, the Suebi and the Burgundians who settled in Gaul from east of the Rhine after the fall of the Roman Empire, as well as various later waves of lower-level irregular migration that have continued to the present day. The Norsemen also settled in Normandy in the 10th century and contributed significantly to the ancestry of the Normans. Furthermore, regional ethnic minorities also exist within France that have distinct lineages, languages and cultures such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
