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Isabelle Chalendar
Isabelle Chalendar is a French mathematician whose research interests include functional analysis, complex analysis, operator theory, and the theory of semigroups. She is a professor of mathematics and head of the mathematics department at Gustave Eiffel University, a member of the university's Laboratoire d'analyse et de mathématiques appliquées (LAMA), and also holds affiliations with Université Paris Est Marne-la-Vallée (UPEM), Paris-East Créteil University (UPEC), and the French National Centre for Scientific Research (CNRS). Education and career Chalendar received her Ph.D. in 1996 from the University of Bordeaux 1, with the dissertation ''Autour du probleme du sous-espace invariant et theorie des algebres duales'' on the invariant subspace problem supervised by Bernard Gustave Chevreau. She was maître de conférences at the Camille Jordan Institute of Claude Bernard University Lyon 1, before moving to her present position at Gustave Eiffel University. She was named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Functional Analysis
Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (for example, Inner product space#Definition, inner product, Norm (mathematics)#Definition, norm, or Topological space#Definitions, topology) and the linear transformation, linear functions defined on these spaces and suitably respecting these structures. The historical roots of functional analysis lie in the study of function space, spaces of functions and the formulation of properties of transformations of functions such as the Fourier transform as transformations defining, for example, continuous function, continuous or unitary operator, unitary operators between function spaces. This point of view turned out to be particularly useful for the study of differential equations, differential and integral equations. The usage of the word ''functional (mathematics), functional'' as a noun goes back to the calculus of v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maître De Conférences
The following summarizes basic academic ranks in the France, French higher education system. Most academic institutions are state-run and most academics with permanent positions are French Civil Service, civil servants, and thus are Academic tenure, tenured (after a one-year probationary period). Several parallel career paths exist, depending on the type of institution. The three paths correspond to teacher-researchers (''enseignants-chercheurs''), researchers, and teachers. It is possible to be promoted from one path to another. Several ranks exist within each path. Increases in rank (for example, the promotion from associate professor to full professor) come with an increase in salary and responsibility and are subject to some conditions, such as the habilitation. In most cases, moving to a higher rank requires going through an open recruitment competition, the same procedure used for initially obtaining the position in the lower rank. Temporary positions include PhD students, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Mathematical Analysts
French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices Arts and media * The French (band), a British rock band * "French" (episode), a live-action episode of ''The Super Mario Bros. Super Show!'' * ''Française'' (film), a 2008 film * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a type of military jacket or tunic * French's, an American brand of mustard condiment * French (catheter scale), a unit of measurement * French Defence, a chess opening * French kiss, a type of kiss See also * France (other) * Franch, a surname * French Revolution (other) * French River (other), several rivers and other places * Frenching (other) * Justice French (other) Justice French may refer to: * C. G. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Purpose: Because living persons may suffer personal harm from inappropriate information, we should watch their articles carefully. By adding an article to this category, it marks them with a notice about sources whenever someone tries to edit them, to remind them of WP:BLP (biographies of living persons) policy that these articles must maintain a neutral point of view, maintain factual accuracy, and be properly sourced. Recent changes to these articles are listed on Special:RecentChangesLinked/Living people. Organization: This category should not be sub-categorized. Entries are generally sorted by family name In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give .... Maintenance: Individuals of advanced age (over 90), for whom there has been no new documentation in the last ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Missing (living People)
A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year (approximately 365 solar days, 5 hours, 48 minutes, 45 seconds) and the sidereal year (about 20 minutes longer) are more exact. The modern calendar year, as reckoned according to the Gregorian calendar, approximates the tropical year by using a system of leap years. The term 'year' is also used to indicate other periods of roughly similar duration, such as the lunar year (a roughly 354-day cycle of twelve of the Moon's phasessee lunar calendar), as well as periods loosely associated with the calendar or astronomical year, such as the seasonal year, the fiscal year, the academic year, etc. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by changes in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Mathematical Society
The Canadian Mathematical Society (CMS; French: ''Société mathématique du Canada'') is an association of professional mathematicians dedicated to advancing mathematical research, outreach, scholarship and education in Canada. The Society serves the national and international communities through the publication of high-quality academic journals and community bulletins, as well as by organizing a variety of mathematical competitions and enrichment programs. These include the Canadian Open Mathematics Challenge (COMC), the Canadian Mathematical Olympiad (CMO), and the selection and training of Canada's team for the International Mathematical Olympiad (IMO) and the European Girls’ Mathematical Olympiad (EGMO). The CMS was originally conceived in June 1945 as the Canadian Mathematical Congress. A name change was debated for many years; ultimately, a new name was adopted in 1979, upon the Society’s incorporation as a non-profit charitable organization. The Society is affi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phase Retrieval
Phase retrieval is the process of algorithmically finding solutions to the phase problem. Given a complex spectrum F(k), of amplitude , F (k), , and phase \psi(k): ::F(k) = , F(k), e^ =\int_^ f(x)\ e^\,dx where ''x'' is an ''M''-dimensional spatial coordinate and ''k'' is an ''M''-dimensional spatial frequency coordinate. Phase retrieval consists of finding the phase that satisfies a set of constraints for a measured amplitude. Important applications of phase retrieval include X-ray crystallography, transmission electron microscopy and coherent diffractive imaging, for which M = 2. Uniqueness theorems for both 1-D and 2-D cases of the phase retrieval problem, including the phaseless 1-D inverse scattering problem, were proven by Klibanov and his collaborators (see References). Problem formulation Here we consider 1-D discrete Fourier transform (DFT) phase retrieval problem. The DFT of a complex signal f[n] is given by F[k]=\sum_^ f[n] e^=, F[k], \cdot e^ \quad k=0,1, \ldots ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonathan Partington
Jonathan Richard Partington (born 4 February 1955) is an English mathematician who is Emeritus Professor of pure mathematics at the University of Leeds. Education Professor Partington was educated at Gresham's School, Holt, and Trinity College, Cambridge, where he completed his PhD thesis entitled "Numerical ranges and the Geometry of Banach Spaces" under the supervision of Béla Bollobás. Career Partington works in the area of operator theory and complex analysis, sometimes applied to control theory, and is the author of several books in this area. He was formerly editor-in-chief of the ''Journal of the London Mathematical Society'', a position he held jointly with his Leeds colleague John Truss. Partington's extra-mathematical activities include the invention of thMarch March march an annual walk starting at March, Cambridgeshire. He is also known as a writer or co-writer of some of the earliest British text-based computer games, including Acheton, Hamil, Murdac, Avon, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claude Bernard University Lyon 1
Claude Bernard University Lyon 1 (, UCBL) is one of the three public universities of Lyon, France. It is named after the French physiologist Claude Bernard and specialises in science and technology, medicine, and sports science. It was established in 1971 by the merger of the 'faculté des sciences de Lyon' with the 'faculté de médecine'. The main administrative, teaching and research facilities are located in Villeurbanne, with other campuses located in Gerland, Rockefeller, and Laennec in the 8th arrondissement of Lyon. Attached to the university are the Hospices Civils de Lyon, including the 'Centre Hospitalier Lyon-Sud', which is the largest teaching hospital in the Rhône-Alpes regions of France, region and the second-largest in France. The university has been independent since January 2009. In 2020 it managed an annual budget of over €420 million and had 2857 faculty. History On 17 March 1808, Napoleon I founded the University of France, a national organisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invariant Subspace Problem
In the field of mathematics known as functional analysis, the invariant subspace problem is a partially unresolved problem asking whether every bounded operator on a complex Banach space sends some non-trivial closed subspace to itself. Many variants of the problem have been solved, by restricting the class of bounded operators considered or by specifying a particular class of Banach spaces. The problem is still open for separable Hilbert spaces (in other words, each example, found so far, of an operator with no non-trivial invariant subspaces is an operator that acts on a Banach space that is not isomorphic to a separable Hilbert space). History The problem seems to have been stated in the mid-20th century after work by Beurling and von Neumann,. who found (but never published) a positive solution for the case of compact operators. It was then posed by Paul Halmos for the case of operators T such that T^2 is compact. This was resolved affirmatively, for the more general cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Complex Analysis
Complex analysis, traditionally known as the theory of functions of a complex variable, is the branch of mathematical analysis that investigates functions of complex numbers. It is helpful in many branches of mathematics, including algebraic geometry, number theory, analytic combinatorics, and applied mathematics, as well as in physics, including the branches of hydrodynamics, thermodynamics, quantum mechanics, and twistor theory. By extension, use of complex analysis also has applications in engineering fields such as nuclear, aerospace, mechanical and electrical engineering. As a differentiable function of a complex variable is equal to the sum function given by its Taylor series (that is, it is analytic), complex analysis is particularly concerned with analytic functions of a complex variable, that is, '' holomorphic functions''. The concept can be extended to functions of several complex variables. Complex analysis is contrasted with real analysis, which dea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Bordeaux 1
The University of Bordeaux 1 () was one of the four universities in the Academy of Bordeaux, together with the Bordeaux Segalen University (Bordeaux 2), Michel de Montaigne University (Bordeaux 3) and Montesquieu University (Bordeaux 4). On 1 January 2014, it merged with Bordeaux 2 and Bordeaux 4 to form the University of Bordeaux. It currently operates as the Talence campus of the merged University of Bordeaux. It houses many important laboratories, such as: * ''Centre de Neurosciences Intégratives et Cognitives'' (CNIC), a neuroscience research center * ''Laboratoire Bordelais de Recherche en Informatique'' (LaBRI), a computer science research center See also *University of Bordeaux The University of Bordeaux (, ) is a public research university based in Nouvelle-Aquitaine in southwestern France. It has several campuses in the cities and towns of Bordeaux, Dax, Gradignan, Périgueux, Pessac, and Talence. There are al ... * List of public universities in France ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
