Mikhail Kadets
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Mikhail Kadets
Mikhail Iosiphovich Kadets (russian: Михаил Иосифович Кадец, uk, Михайло Йосипович Кадець , sometimes transliterated as Kadec, 30 November 1923 – 7 March 2011) was a Soviet-born Jewish mathematician working in analysis and the theory of Banach spaces. Life and work Kadets was born in Kiev. In 1943, he was drafted into the army. After demobilisation in 1946, he studied at Kharkov University, graduating in 1950. After several years in Makeevka he returned to Kharkov in 1957, where he spent the remainder of his life working at various institutes. He defended his PhD in 1955 (under the supervision of Boris Levin), and his doctoral dissertation in 1963. He was awarded the State Prize of Ukraine in 2005. After reading the Ukrainian translation of Banach's monograph '' Théorie des Opérations Linéaires'', he became interested in the theory of Banach spaces. In 1966, Kadets solved in the affirmative the Banach– Fréchet problem, aski ...
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Kiev
Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe. Kyiv is an important industrial, scientific, educational, and cultural center in Eastern Europe. It is home to many high-tech industries, higher education institutions, and historical landmarks. The city has an extensive system of public transport and infrastructure, including the Kyiv Metro. The city's name is said to derive from the name of Kyi, one of its four legendary founders. During its history, Kyiv, one of the oldest cities in Eastern Europe, passed through several stages of prominence and obscurity. The city probably existed as a commercial center as early as the 5th century. A Slavic settlement on the great trade route between Scandinavia and Constantinople, Kyiv was a tributary of the Khazars, until its capture by the Vara ...
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Aleksander Pełczyński
Aleksander "Olek" Pełczyński (2 July 1932, Tarnopol, Poland – 20 December 2012, Wrocław) was a Polish mathematician who worked in functional analysis. Career Pełczyński studied mathematics from 1950 to 1956 at the University of Warsaw and received there his doctorate in 1958 under Stanisław Mazur with dissertation ''Własności izomorficzne przestrzeni Banacha związane ze słabą zbieżnością bezwarunkową szeregów'' (Isomorphic properties of Banach spaces with regard to unconditional convergence of series). From 1967 to 2002 he worked at the Polish Academy of Sciences. From 1967 onwards, he was a member of the editorial staff of the journal ''Studia Mathematica''. His doctoral students include Nicole Tomczak-Jaegermann and Stanisław Szarek. He died in December 2012 and was buried in Warsaw. Research Pełczyński's main field of research was functional analysis, especially the theory of Banach spaces. The Bessaga–Pełczyński selection principle and the Pe� ...
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Soviet Jews
The history of the Jews in the Soviet Union is inextricably linked to much earlier expansionist policies of the Russian Empire conquering and ruling the eastern half of the European continent already before the Bolshevik Revolution of 1917. "For two centuries – wrote Zvi Gitelman – millions of Jews had lived under one entity, the Russian Empire and its successor state the USSR. They had now come under the jurisdiction of fifteen states, some of which had never existed and others that had passed out of existence in 1939." Before the revolutions of 1989 which resulted in the end of communist rule in Central and Eastern Europe, a number of these now sovereign countries constituted the component republics of the Soviet Union. Armenia The history of the Jews in Armenia dates back more than 2,000 years. After Eastern Armenia came under Russian rule in the early 19th century, Jews began arriving from Poland and Iran, creating Ashkenazic and Mizrahi communities in Yerevan. More Jews ...
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Ukrainian Mathematicians
This a list of the best known Ukrainian mathematicians. This list includes some Polish, pre-revolutionary Russian and Soviet mathematicians who lived or worked in Ukraine. __NOTOC__ {{compact ToC, side=yes, top=yes, num=yes A * Akhiezer, Naum Ilyich (1901–1980) B * Bernstein, Sergei Natanovich (1880–1968) * Borok, Valentina Mikhailovna (1931–2004) * Berlyand, Leonid Viktorovich (b. 1957) D * Dorohovtsev, Anatoliy Yakovych (1935–2004) * Drinfeld, Volodymyr Gershonovych (b. 1954) E * Eremenko, Oleksandr Emmanuilovich (b. 1954) G * Geronimus, Yakov Lazarevich (1898–1984) * Glushkov, Victor Mihailovich (1923–1982) * Goldberg, Anatolii Asirovich (1930–2008) * Grave, Dmytro Olexandrovych (1863–1939) K * Kadets, Mikhail Iosiphovich (1923–2011) * Korolyuk, Volodymyr Semenovych (1925–2020) * Kovalenko, Ihor Mykolayovych (b. 1935) * Kondratiev, Yuri (b. 1953) * Koshmanenko, Volodymyr Dmytrovych (b. 1943) * Kravchuk, Myhailo Pylypovych ( ...
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Soviet Mathematicians
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk (Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government that ...
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Scientists From Kyiv
A scientist is a person who conducts Scientific method, scientific research to advance knowledge in an Branches of science, area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales (circa 624-545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century in science, 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. In modern times, many scientists have Terminal degree, advanced degrees in an area of science and pursue careers in various Sector (economic), sectors of the economy such ...
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2011 Deaths
This is a list of deaths of notable people, organised by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked here. 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 See also * Lists of deaths by day * Deaths by year {{DEFAULTSORT:deaths by year ...
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1923 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album '' 63/19'' by Kool A.D. * '' Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slip ...
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National University Of Kharkiv Alumni
National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, census-designated place * National, Nevada, ghost town * National, Utah, ghost town * National, West Virginia, unincorporated community Commerce * National (brand), a brand name of electronic goods from Panasonic * National Benzole (or simply known as National), former petrol station chain in the UK, merged with BP * National Car Rental, an American rental car company * National Energy Systems, a former name of Eco Marine Power * National Entertainment Commission, a former name of the Media Rating Council * National Motor Vehicle Company, Indianapolis, Indiana, USA 1900-1924 * National Supermarkets, a defunct American grocery store chain * National String Instrument Corporation, a guitar company formed to manufacture the first reso ...
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Mathematical Analysts
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of th ...
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Functional Analysts
Functional may refer to: * Movements in architecture: ** Functionalism (architecture) ** Form follows function * Functional group, combination of atoms within molecules * Medical conditions without currently visible organic basis: ** Functional symptom ** Functional disorder * Functional classification for roads * Functional organization * Functional training In mathematics * Functional (mathematics), a term applied to certain scalar-valued functions in mathematics and computer science ** Functional analysis ** Linear functional, a type of functional often simply called a functional in the context of functional analysis * Higher-order function, also called a functional, a function that takes other functions as arguments In computer science, software engineering * (C++), a header file in the C++ Standard Library * Functional design, a paradigm used to simplify the design of hardware and software devices * Functional model, a structured representation of functions, activit ...
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Riesz Sequence
In mathematics, a sequence of vectors (''x''''n'') in a Hilbert space (H,\langle\cdot,\cdot\rangle) is called a Riesz sequence if there exist constants 0 such that : c\left( \sum_n , a_n, ^2 \right) \leq \left\Vert \sum_n a_n x_n \right\Vert^2 \leq C \left( \sum_n , a_n, ^2 \right) for all sequences of s (''a''''n'') in the ''p'' space2. A Riesz sequence is called a Riesz if :\overline = H .


Theorems

If ''H'' is a