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Alexandra Bellow
Alexandra Bellow (née Bagdasar; previously Ionescu Tulcea; born 30 August 1935) is a Romanian-American mathematician, who has made contributions to the fields of ergodic theory, probability and analysis. Biography Bellow was born in Bucharest, Romania, on August 30, 1935, as Alexandra Bagdasar. Her parents were both physicians. Her mother, Florica Bagdasar (née Ciumetti), was a child psychiatrist. Her father, , was a neurosurgeon. She received her M.S. in mathematics from the University of Bucharest in 1957, where she met and married her first husband, mathematician Cassius Ionescu-Tulcea. She accompanied her husband to the United States in 1957 and received her Ph.D. from Yale University in 1959 under the direction of Shizuo Kakutani with thesis ''Ergodic Theory of Random Series''. After receiving her degree, she worked as a research associate at Yale from 1959 until 1961, and as an assistant professor at the University of Pennsylvania from 1962 to 1964. From 1964 until 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical Research Institute Of Oberwolfach
The Oberwolfach Research Institute for Mathematics (german: Mathematisches Forschungsinstitut Oberwolfach) is a center for mathematical research in Oberwolfach, Germany. It was founded by mathematician Wilhelm Süss in 1944. It organizes weekly workshops on diverse topics where mathematicians and scientists from all over the world come to do collaborative research. The Institute is a member of the Leibniz Association, funded mainly by the German Federal Ministry of Education and Research and by the state of Baden-Württemberg. It also receives substantial funding from the ''Friends of Oberwolfach'' foundation, from the ''Oberwolfach Foundation'' and from numerous donors. History The Oberwolfach Research Institute for Mathematics (MFO) was founded as the ''Reich Institute of Mathematics'' (German: ''Reichsinstitut für Mathematik'') on 1 September 1944. It was one of several research institutes founded by the Nazis in order to further the German war effort, which at that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychiatrist
A psychiatrist is a physician who specializes in psychiatry, the branch of medicine devoted to the diagnosis, prevention, study, and treatment of mental disorders. Psychiatrists are physicians and evaluate patients to determine whether their symptoms are the result of a physical illness, a combination of physical and mental ailments or strictly mental issues. Sometimes a psychiatrist works within a multi-disciplinary team, which may comprise Clinical psychology, clinical psychologists, Social work, social workers, Occupational therapist, occupational therapists, and Nursing, nursing staff. Psychiatrists have broad training in a Biopsychosocial model, biopsychosocial approach to the assessment and management of mental illness. As part of the clinical assessment process, psychiatrists may employ a mental status examination; a physical examination; brain imaging such as a computerized tomography, magnetic resonance imaging, or positron emission tomography scan; and blood testing. P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ergebnisse Der Mathematik Und Ihrer Grenzgebiete
''Ergebnisse der Mathematik und ihrer Grenzgebiete''/''A Series of Modern Surveys in Mathematics'' is a series of scholarly monographs published by Springer Science+Business Media. The title literally means "Results in mathematics and related areas". Most of the books were published in German or English, but there were a few in French and Italian. There have been several sequences, or ''Folge'': the original series, neue Folge, and 3.Folge. Some of the most significant mathematical monographs of 20th century appeared in this series. Original series The series started in 1932 with publication of ''Knotentheorie'' by Kurt Reidemeister as "Band 1" (English: volume 1). There seems to have been double numeration in this sequence. Neue Folge This sequence started in 1950 with the publication of ''Transfinite Zahlen'' by Heinz Bachmann. The volumes are consecutively numbered, designated as either "Band" or "Heft". A total of 100 volumes was published, often in multiple editions, but pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linear Operators
In mathematics, and more specifically in linear algebra, a linear map (also called a linear mapping, linear transformation, vector space homomorphism, or in some contexts linear function) is a mapping V \to W between two vector spaces that preserves the operations of vector addition and scalar multiplication. The same names and the same definition are also used for the more general case of modules over a ring; see Module homomorphism. If a linear map is a bijection then it is called a . In the case where V = W, a linear map is called a (linear) ''endomorphism''. Sometimes the term refers to this case, but the term "linear operator" can have different meanings for different conventions: for example, it can be used to emphasize that V and W are real vector spaces (not necessarily with V = W), or it can be used to emphasize that V is a function space, which is a common convention in functional analysis. Sometimes the term ''linear function'' has the same meaning as ''linear map'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Representation Theory
Representation theory is a branch of mathematics that studies abstract algebraic structures by ''representing'' their elements as linear transformations of vector spaces, and studies modules over these abstract algebraic structures. In essence, a representation makes an abstract algebraic object more concrete by describing its elements by matrices and their algebraic operations (for example, matrix addition, matrix multiplication). The theory of matrices and linear operators is well-understood, so representations of more abstract objects in terms of familiar linear algebra objects helps glean properties and sometimes simplify calculations on more abstract theories. The algebraic objects amenable to such a description include groups, associative algebras and Lie algebras. The most prominent of these (and historically the first) is the representation theory of groups, in which elements of a group are represented by invertible matrices in such a way that the group operation i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorothy Maharam
Dorothy Maharam Stone (July 1, 1917 – September 27, 2014) was an American mathematician born in Parkersburg, West Virginia, who made important contributions to measure theory and became the namesake of Maharam's theorem and Maharam algebra. Life Maharam earned her B.S. degree at Carnegie Institute of Technology in 1937 and her Ph.D. in 1940 under Anna Johnson Pell Wheeler from Bryn Mawr College with a dissertation entitled ''On measure in abstract sets''. Part of her thesis was published in the Transactions of the American Mathematical Society. Then she went on to a postdoc at the Institute for Advanced Study in Princeton, New Jersey, where she first met fellow mathematician Arthur Harold Stone. They married in April 1942. Stone and Maharam both lectured at various universities in the US and the United Kingdom and were faculty at the University of Rochester for many years. She was an invited speaker at a measure theory conference at Northern Illinois University in 1980. Their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Von Neumann
John von Neumann (; hu, Neumann János Lajos, ; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath. He was regarded as having perhaps the widest coverage of any mathematician of his time and was said to have been "the last representative of the great mathematicians who were equally at home in both pure and applied mathematics". He integrated pure and applied sciences. Von Neumann made major contributions to many fields, including mathematics (foundations of mathematics, measure theory, functional analysis, ergodic theory, group theory, lattice theory, representation theory, operator algebras, matrix theory, geometry, and numerical analysis), physics (quantum mechanics, hydrodynamics, ballistics, nuclear physics and quantum statistical mechanics), economics ( game theory and general equilibrium theory), computing ( Von Neumann architecture, linear programming, numerical meteo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lifting Theory
In mathematics, lifting theory was first introduced by John von Neumann in a pioneering paper from 1931, in which he answered a question raised by Alfréd Haar. The theory was further developed by Dorothy Maharam (1958) and by Alexandra Ionescu Tulcea and Cassius Ionescu Tulcea (1961). Lifting theory was motivated to a large extent by its striking applications. Its development up to 1969 was described in a monograph of the Ionescu Tulceas. Lifting theory continued to develop since then, yielding new results and applications. Definitions A lifting on a measure space (X, \Sigma, \mu) is a linear and multiplicative operator : T\colon L^\infty(X,\Sigma,\mu)\to \mathcal L^\infty(X,\Sigma,\mu) which is a right inverse of the quotient map : \begin\mathcal L^\infty(X,\Sigma,\mu)\to L^\infty(X,\Sigma,\mu) \\ f\mapsto end where \mathcal L^\infty(X,\Sigma,\mu) is the seminormed Lp space of measurable functions and L^\infty(X,\Sigma,\mu) is its usual normed quotient. In other words ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evenimentul Zilei
''Evenimentul Zilei'' is a formerly physical and now exclusively online newspaper in Romania. Its name means "today's even (news)". History and profile ''Evenimentul Zilei'' was founded by Ion Cristoiu, Cornel Nistorescu and Mihai Cârciog, and the first issue was published on 22 June 1992.Media Index. Evenimentul Zilei Euro Topics. Retrieved 6 December 2013 The newspaper reached its peak daily circulation of 675,000 in 1993. In 1997 chief editor Ion Cristoiu quit and this job was taken by Cornel Nistorescu. The newspaper was purchased along with its parent company Publishing in 1998 by the German company (owned, in turn, by [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid digital subscribers. It also is a producer of popular podcasts such as '' The Daily''. Founded in 1851 by Henry Jarvis Raymond and George Jones, it was initially published by Raymond, Jones & Company. The ''Times'' has won 132 Pulitzer Prizes, the most of any newspaper, and has long been regarded as a national " newspaper of record". For print it is ranked 18th in the world by circulation and 3rd in the U.S. The paper is owned by the New York Times Company, which is publicly traded. It has been governed by the Sulzberger family since 1896, through a dual-class share structure after its shares became publicly traded. A. G. Sulzberger, the paper's publisher and the company's chairman, is the fifth generation of the family to head the pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ravelstein
''Ravelstein'' is Saul Bellow's final novel. Published in 2000, when Bellow was eighty-five years old, it received widespread critical acclaim. It tells the tale of a friendship between a university professor and a writer, and the complications that animate their erotic and intellectual attachments in the face of impending death. The novel is a ''roman à clef'' written in the form of a memoir. The narrator is in Paris with Abe Ravelstein, a renowned professor, and Nikki, his lover. Ravelstein, who is dying, asks the narrator to write a memoir about him after he dies. After his death, the narrator and his wife go on holiday to the Caribbean. The narrator catches a tropical disease and flies back to the United States to convalesce. Eventually, on recuperation, he decides to write the memoir. The title character, Ravelstein, is based on the philosopher Allan Bloom, who taught alongside Bellow at the University of Chicago's Committee on Social Thought. Remembering Bloom in an intervi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Dean's December
''The Dean's December'' is a 1982 novel by the American author Saul Bellow. Setting The first novel Bellow published after winning the Nobel Prize in Literature in 1976, it is set in Chicago and Bucharest. Plot The book's main character, Albert Corde, a meditative academic who faces a crisis, accompanies his Romanian-born astrophysicist wife to her Communist-ruled native country, where they deal with the death of his mother-in-law. This sojourn allows Corde to observe the workings of a totalitarian regime in particular and the Eastern Bloc in general, a perspective which provides him with insight into the human condition The human condition is all of the characteristics and key events of human life, including birth, learning, emotion, aspiration, morality, conflict, and death. This is a very broad topic that has been and continues to be pondered and analyzed fr .... Reception In the ''New York Times'' Book Review, critic Robert Towers concluded, “''The Dean's December'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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