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Hà Huy Khoái
Hà Huy Khoái (born 24 November 1946, in Ha Tinh) is a Vietnamese mathematician working in complex analysis. Career Hà Huy Khoái studied in Vietnam under the "fathers" of Vietnamese mathematics Lê Văn Thiêm and Hoàng Tụy, and in Moscow at the Steklov Institute of Mathematics under Yuri I. Manin. He is currently a professor and the director of the Mathematics Institute of Vietnam Academy of Science and Technology. He is a senior advisor of the Acta Mathematica Vietnamica journal. His main field of work has been ''p''-adic Nevanlinna theory, for example proving part of a non-Archimedean version of Green's theorem (AMS, 1992, 503-509). International Mathematical Olympiads He has been the Vietnam team leader for several International Mathematical Olympiads.''50th IMO - 50 Years of International Mathematical Olympiads'' 2011 - Page 98 "VNM Vietnam Leader Hà Huy Khoái Deputy Nguyễn Khắc Minh Contestants Nguyễn ..." Selected publications * ''Holomorphic mappings on Ba ... [...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] |
Lê Văn Thiêm
Lê Văn Thiêm (29 March 1918 – 3 July 1991) was a Vietnamese scientist. Together with Hoàng Tụy, he is considered the father of Vietnam Mathematics society. He was the first director of the Vietnam Institute of Mathematics, and the first Headmaster of Hanoi National University of Education and Hanoi University of Science. Biography Lê Văn Thiêm was born in 1918 at Trung Lễ Commune, Đức Thọ District, Hà Tĩnh Province, to an intellectual family. He was the youngest of 13 brothers and sisters. After the death of his parents in 1930, he moved to live with his older brother in Quy Nhơn and attended the Collège de Quy Nhơn, where Thiêm stood out in science and mathematics. Within four years, he had completed the 9-year education (equivalent to K-12 system of the US) and went to University of Indochina for his higher education. Because of the humble scale of the university at that moment, no Math course was offered. Therefore, he enrolled in the PCB (Physics-Chem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoang Tuy
Huang (; zh, t=黃, s= 黄, c=, p=, first=t) is a Chinese surname. While ''Huáng'' is the pinyin romanization of the word, it may also be romanized as Hwang, Wong, Waan, Wan, Waon, Hwong, Vong, Hung, Hong, Bong, Eng, Ng, Uy, Wee, Oi, Oei, Oey, Ooi, Ong, or Ung due to pronunciations of the word in different dialects and languages. It is the 96th name on the ''Hundred Family Surnames'' poem.K. S. Tom. 989(1989). Echoes from Old China: Life, Legends and Lore of the Middle Kingdom. University of Hawaii Press. . This surname is known as Hwang in Korean. In Vietnamese, the name is known as Hoàng or Huỳnh. Huang is the 7th most common surname in China. Hoang/Huynh is the 5th most common surname in Vietnam. The population of Huangs in China and Taiwan was estimated at more than 35 million in 2020; it was also the surname of more than 2 million overseas Chinese, 5.7 million Vietnamese (6%), and an estimated 1 million Koreans (The 2015 census of South Korea revealed it was the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steklov Institute Of Mathematics
Steklov Institute of Mathematics or Steklov Mathematical Institute () is a premier research institute based in Moscow, specialized in mathematics, and a part of the Russian Academy of Sciences. The institute is named after Vladimir Andreevich Steklov, who in 1919 founded the Institute of Physics and Mathematics in Saint Petersburg, Leningrad. In 1934, this institute was split into separate parts for physics and mathematics, and the mathematical part became the Steklov Institute. At the same time, it was moved to Moscow. The first director of the Steklov Institute was Ivan Matveyevich Vinogradov. From 19611964, the institute's director was the notable mathematician Sergei Chernikov. The old building of the Institute in Leningrad became its Department in Leningrad. Today, that department has become a separate institute, called the ''St. Petersburg Department of Steklov Mathematical Institute of the Russian Academy of Sciences'' or PDMI RAS, located in Saint Petersburg, Russia. The n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri I
Yuri I Vladimirovich (; ; c. 1099 – 15 May 1157), commonly known as Yuri Dolgorukiy (, ) or the Long Arm, was a Monomakhovichi prince of Rostov and Suzdal, acquiring the name ''Suzdalia'' during his reign. Noted for successfully curbing the privileges of the landowning ''boyar'' class in Rostov-Suzdal and his ambitious building programme, Yuri transformed this principality into the independent power that would evolve into early modern Muscovy. Yuri Dolgorukiy was the progenitor of the Yurievichi ( ), a branch of the Monomakhovichi. Yuri spent much of his life in internecine strife with the other Rus' princes for suzerainty over the Kievan Rus, which had been held by his father ( Vladimir Monomakh) and his elder brother before him. Although he twice managed to briefly hold Kiev (in September 1149 – April 1151, again in March 1155 – May 1157) and rule as Grand Prince of Kiev, his autocratic rule and perceived foreigner status made him unpopular with the powerful Kieva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam Academy Of Science And Technology
The Vietnam Academy of Science and Technology (VAST; ) is the largest and most prominent research institute in Vietnam. It was founded on 20 May 1975 as the Vietnam Academy of Science, then subsequently assumed its current name in 2008. Its infrastructure spans Hanoi, Ho Chi Minh City, Hải Phòng, Nha Trang, Đà Lạt, and Huế. In March 2010, the VAST launched a peer-reviewed open access journal, ''Advances in Natural Sciences: Nanoscience and Nanotechnology'' (ANSN). The journal is jointly published with IOP Publishing IOP Publishing (previously Institute of Physics Publishing) is the publishing company of the Institute of Physics. It provides publications through which scientific research is distributed worldwide, including journals, community websites, maga .... The Vietnam National Satellite Center, renamed the Vietnam National Space Center (VNSC) in July 2017, was founded as a VAST research center on 16 September 2011 to implement space and satellite projects for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevanlinna Theory
In the mathematical field of complex analysis, Nevanlinna theory is part of the theory of meromorphic functions. It was devised in 1925, by Rolf Nevanlinna. Hermann Weyl called it "one of the few great mathematical events of (the twentieth) century." The theory describes the asymptotic distribution of solutions of the equation ''f''(''z'') = ''a'', as ''a'' varies. A fundamental tool is the Nevanlinna characteristic ''T''(''r'', ''f'') which measures the rate of growth of a meromorphic function. Other main contributors in the first half of the 20th century were Lars Ahlfors, André Bloch, Henri Cartan, Edward Collingwood, Otto Frostman, Frithiof Nevanlinna, Henrik Selberg, Tatsujiro Shimizu, Oswald Teichmüller, and Georges Valiron. In its original form, Nevanlinna theory deals with meromorphic functions of one complex variable defined in a disc , ''z'', ≤ ''R'' or in the whole complex plane (''R'' = ∞). Subsequent generalizations extended Nevanlinna theo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green's Theorem
In vector calculus, Green's theorem relates a line integral around a simple closed curve to a double integral over the plane region (surface in \R^2) bounded by . It is the two-dimensional special case of Stokes' theorem (surface in \R^3). In one dimension, it is equivalent to the fundamental theorem of calculus. In three dimensions, it is equivalent to the divergence theorem. Theorem Let be a positively oriented, piecewise smooth, simple closed curve in a plane, and let be the region bounded by . If and are functions of defined on an open region containing and have continuous partial derivatives there, then \oint_C (L\, dx + M\, dy) = \iint_ \left(\frac - \frac\right) dA where the path of integration along is counterclockwise. Application In physics, Green's theorem finds many applications. One is solving two-dimensional flow integrals, stating that the sum of fluid outflowing from a volume is equal to the total outflow summed about an enclosing area. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Mathematical Olympiad
The International Mathematical Olympiad (IMO) is a mathematical olympiad for pre-university students, and is the oldest of the International Science Olympiads. It is widely regarded as the most prestigious mathematical competition in the world. The first IMO was held in Romania in 1959. It has since been held annually, except in 1980. More than 100 countries participate. Each country sends a team of up to six students, plus one team leader, one deputy leader, and observers. Awards are given to approximately the top-scoring 50% of the individual contestants. Teams are not officially recognized—all scores are given only to individual contestants, but team scoring is unofficially compared more than individual scores. Question type The content ranges from extremely difficult algebra and pre-calculus problems to problems in branches of mathematics not conventionally covered in secondary or high school and often not at university level either, such as projective and complex geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical Notes
''Mathematical Notes'' is a peer-reviewed mathematical journal published by Springer Science+Business Media on behalf of the Russian Academy of Sciences that covers all aspects of mathematics. It is an English language translation of the Russian-language journal ''Matematicheskie Zametki'' () and is published simultaneously with the Russian version. The journal was established in 1967 as ''Mathematical Notes of the Academy of Sciences of the USSR'' and obtained its current title in 1991. The current editor-in-chief is Victor P. Maslov. According to the ''Journal Citation Reports'', the journal has a 2011 impact factor of 0.295. The journal is indexed in Russian Science Citation Index Russian Science Citation Index (Russian: Российский индекс научного цитирования) is a bibliographic database of scientific publications in Russian. It holds around 13 million publications by Russian authors a .... References External links * {{Official ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1946 Births
1946 (Roman numerals, MCMXLVI) was a common year starting on Tuesday of the Gregorian calendar, the 1946th year of the Common Era (CE) and ''Anno Domini'' (AD) designations, the 946th year of the 2nd millennium, the 46th year of the 20th century, and the 7th year of the 1940s decade. Events January * January 6 – The 1946 North Vietnamese parliamentary election, first general election ever in Vietnam is held. * January 7 – The Allies of World War II recognize the Austrian republic with its 1937 borders, and divide the country into four Allied-occupied Austria, occupation zones. * January 10 ** The first meeting of the United Nations is held, at Methodist Central Hall Westminster in London. ** ''Project Diana'' bounces radar waves off the Moon, measuring the exact distance between the Earth and the Moon, and proves that communication is possible between Earth and outer space, effectively opening the Space Age. * January 11 – Enver Hoxha declares the People's Republic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
