Jean Céa
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Jean Céa
Jean Céa (8 February 1932 – 9 January 2024) was a French mathematician. Born to Spanish immigrants in Aïn Témouchent, Algeria (he learnt French in school), he studied at the Ecole normale d'instituteurs d'Oran and the École normale supérieure de Saint-Cloud, obtaining his Ph.D. in 1964 with his dissertation ''Approximation variationnelle des problèmes aux limites''. In his thesis he proved the Céa's lemma, an important result related to error estimation in the Finite Element Method. Céa was emeritus professor at the University of Nice Sophia Antipolis and member of the Academia Europaea. In 1975 he was awarded the Poncelet Prize The Poncelet Prize (french: Prix Poncelet) is awarded by the French Academy of Sciences. The prize was established in 1868 by the widow of General Jean-Victor Poncelet for the advancement of the sciences. It was in the amount of 2,000 francs (as of .... Céa died on 9 January 2024 in Nice, at the age of 91. Works * ''Approximation var ...
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Aïn Témouchent
Aïn Témouchent ( ar, عين تموشنت) is a city in north western Algeria, it is the capital of Aïn Témouchent Province. Ain Temouchent is located 72 km south-west of Oran, a city with which it is closely associated, and 63 km west of Sidi Bel Abbes. Known as "la Florissante", it is set in a narrow fertile basaltic valley amid vineyards and orchards. History The town was founded in 1851 by Spanish immigrants, who built on what had been the site of Roman Albulae Albulae is an ancient city and former bishopric in Roman Africa. It remains a titular see of the Roman Catholic Church. It is identified with the modern town of Ain Temouchent, in present Algeria, near the Moroccan border. History Albulae was ... and Arab Ksar ibn Senar. Population over time Gallery References Communes of Aïn Témouchent Province Province seats of Algeria Populated places established in 1851 {{AïnTémouchent-geo-stub ...
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École Normale Supérieure De Saint-Cloud
École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoie, a French commune * École-Valentin, a French commune in the Doubs département * Grandes écoles, higher education establishments in France * The École The École, formerly 'École Internationale de New York, is an independent, French-American bilingual school serving an international community of ''Maternelle''-to-Middle School students in New York City’s Flatiron District. The École has b ..., a French-American bilingual school in New York City Ecole may refer to: * Ecole Software, a Japanese video-games developer/publisher {{disambiguation, geo ...
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Céa's Lemma
Céa's lemma is a lemma in mathematics. Introduced by Jean Céa in his Ph.D. dissertation, it is an important tool for proving error estimates for the finite element method applied to elliptic partial differential equations. Lemma statement Let V be a real Hilbert space with the norm \, \cdot\, . Let a:V\times V\to \mathbb R be a bilinear form with the properties * , a(v, w), \le \gamma \, v\, \,\, w\, for some constant \gamma>0 and all v, w in V ( continuity) * a(v, v) \ge \alpha \, v\, ^2 for some constant \alpha>0 and all v in V ( coercivity or V-ellipticity). Let L:V\to \mathbb R be a bounded linear operator. Consider the problem of finding an element u in V such that : a(u, v)=L(v) for all v in V. Consider the same problem on a finite-dimensional subspace V_h of V, so, u_h in V_h satisfies : a(u_h, v)=L(v) for all v in V_h. By the Lax–Milgram theorem, each of these problems has exactly one solution. Céa's lemma states that : \, u-u_h\, \le \frac\, u-v\, for ...
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Finite Element Method
The finite element method (FEM) is a popular method for numerically solving differential equations arising in engineering and mathematical modeling. Typical problem areas of interest include the traditional fields of structural analysis, heat transfer, fluid flow, mass transport, and electromagnetic potential. The FEM is a general numerical method for solving partial differential equations in two or three space variables (i.e., some boundary value problems). To solve a problem, the FEM subdivides a large system into smaller, simpler parts that are called finite elements. This is achieved by a particular space discretization in the space dimensions, which is implemented by the construction of a mesh of the object: the numerical domain for the solution, which has a finite number of points. The finite element method formulation of a boundary value problem finally results in a system of algebraic equations. The method approximates the unknown function over the domain. The sim ...
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University Of Nice Sophia Antipolis
The University of Nice Sophia Antipolis (french: Université Nice Sophia Antipolis) was a university located in Nice, France and neighboring areas. It was founded in 1965 and was organized in eight faculties, two autonomous institutes and an engineering school. It was merged in 2019 into the Côte d'Azur University. It also hosts the first WWW Interactive Multipurpose Server. It is a member of the Coordination of French Research-Intensive Universities, the equivalent of the Russell Group in the UK. History The University of Nice was officially established by decree dated October 23, 1965. However, it has roots that go back to the 17th century, with the Collegium Jurisconsultorum Niciensium created in 1639 by the Princes of Savoy. It was composed of a body of (law consultants and lawyers) and it lasted until Nice was incorporated into France in 1860. In the 17th century, courses were taught at its College of Medicine. The University of Nice's vocation was asserted at the be ...
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Academia Europaea
The Academia Europaea is a pan-European Academy of Humanities, Letters, Law, and Sciences. The Academia was founded in 1988 as a functioning Europe-wide Academy that encompasses all fields of scholarly inquiry. It acts as co-ordinator of European interests in national research agencies. History The concept of a 'European Academy of Sciences' was raised at a meeting in Paris of the European Ministers of Science in 1985. The initiative was taken by the Royal Society (United Kingdom) which resulted in a meeting in London in June 1986 of Arnold Burgen (United Kingdom), Hubert Curien (France), Umberto Colombo (Italy), David Magnusson (Sweden), Eugen Seibold (Germany) and Ruurd van Lieshout (the Netherlands) – who agreed to the need for a new body. The two key purposes of Academia Europaea are: * express ideas and opinions of individual scientists from Europe * act as co-ordinator of European interests in national research agencies It does not aim to replace existing national a ...
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Poncelet Prize
The Poncelet Prize (french: Prix Poncelet) is awarded by the French Academy of Sciences. The prize was established in 1868 by the widow of General Jean-Victor Poncelet for the advancement of the sciences. It was in the amount of 2,000 francs (as of 1868), mostly for the work in applied mathematics. The precise wording of the announcement by the academy varied from year to year and required the work be "in mechanics", or "for work contributing to the progress of pure or applied mathematics", or simply "in applied mathematics", and sometimes included condition that the work must be "done during the ten years preceding the award." 19th century * (1868) Alfred Clebsch * (1869) Julius von Mayer * (1870) Camille Jordan * (1871) Joseph Boussinesq * (1872) Amédée Mannheim, "for the general excellence of his geometrical disquisitions." * (1873) William Thomson, "for his magnificent works on the mathematical theory of electricity and magnetism." * (1874) Jacques Bresse, "for his work i ...
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Nice
Nice ( , ; Niçard: , classical norm, or , nonstandard, ; it, Nizza ; lij, Nissa; grc, Νίκαια; la, Nicaea) is the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative city limits, with a population of nearly 1 millionDemographia: World Urban Areas
, Demographia.com, April 2016
on an area of . Located on the , the southeastern coast of France on the , at the foot of the

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1932 Births
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 ''Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned off ...
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2024 Deaths
The following notable deaths occurred in 2024. Names are reported under the date of death, in alphabetical order. A typical entry reports information in the following sequence: * Name, age, country of citizenship at birth, subsequent nationality (if applicable), what subject was noted for, cause of death (if known), and reference. January 26 25 * Hari Shankar Bhabhra, 95, Indian politician, MP (1978–1984), speaker of the Rajasthan Legislative Assembly (1990–1994) and deputy chief minister of Rajasthan (1994–1998). *Bhavatharini, 47, Indian composer ('' Bharathi'', ''Azhagai Irukkirai Bayamai Irukkirathu'') and music director ('' Mitr, My Friend''), cancer. *Roger Donlon, 89, American military officer, Medal of Honor recipient. * Sanath Nishantha, 48, Sri Lankan politician, minister of state for water supply (2020–2022, since 2022) and MP (since 2015), traffic collision. *Elahi Bux Soomro, 97, Pakistani politician, member (1985–2007) and speaker (1996–2001) ...
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