Hoàng Tụy
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Hoàng Tụy (7 December 1927 – 14 July 2019) was a prominent
Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...
ese applied
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
. He was considered one of two founders of the mathematical institutions of Vietnam; the other was Lê Văn Thiêm.


Career

Hoàng Tụy's early career coincided with the French war (1946–1954), which interrupted his studies. In December 1946, after two months as a mathematics student at Hanoi University of Science VNU, he had to return to the south, because the French had invaded and seized Hanoi, and the University had closed. Hoàng Tụy taught secondary school in Quảng Ngãi province in the Fifth Liberated Zone from 1947 to 1951, during which time he wrote a geometry textbook that was published by the
Việt Minh The Việt Minh (, ) is the common and abbreviated name of the League for Independence of Vietnam ( or , ; ), which was a communist-led national independence coalition formed at Pác Bó by Hồ Chí Minh on 19 May 1941. Also known as the Vi ...
press—perhaps the first time a guerrilla movement published a math book. In the early 1950s, Hoàng Tụy studied with Lê Văn Thiêm in the university that the Việt Minh had opened in a liberated zone in the far north near the Chinese border. In September 1957 he went to the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
, where he studied
real analysis In mathematics, the branch of real analysis studies the behavior of real numbers, sequences and series of real numbers, and real functions. Some particular properties of real-valued sequences and functions that real analysis studies include co ...
under the supervision of D. E. Menshov and G. E. Shilov. Hoàng Tụy received his
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
in mathematics from
Moscow State University Moscow State University (MSU), officially M. V. Lomonosov Moscow State University,. is a public university, public research university in Moscow, Russia. The university includes 15 research institutes, 43 faculties, more than 300 departments, a ...
in 1959. After returning to Vietnam from the Soviet Union, Hoàng Tụy changed his area of research from real analysis, which was too theoretical to be of immediate use in Vietnam, to operations research, a field of applied mathematics. It was Hoàng Tụy who first brought that field of research to Vietnam, and who invented the Vietnamese translation ''vận trù'' of "operations research." Since that time Hoàng Tụy has worked mainly in the field of
global optimization Global optimization is a branch of operations research, applied mathematics, and numerical analysis that attempts to find the global minimum or maximum of a function or a set of functions on a given set. It is usually described as a minimization ...
, where he did pioneering work. He had a long career with th
Institute of Mathematics
of the Vietnamese Academy of Science and Technology, where he was director from 1980 to 1989. He published more than 160 refereed journal and conference articles. In 1997, a workshop in honor of Hoàng Tụy was organized at
Linköping University Linköping University (LiU; ) is a public university, public research university based in Linköping, Sweden. Originally established in 1969, it was granted full university status in 1975 and is one of Sweden's largest academic institutions. T ...
,
Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...
. In December 2007, an international conference on Nonconvex Programming was held in
Rouen Rouen (, ; or ) is a city on the River Seine, in northwestern France. It is in the prefecture of Regions of France, region of Normandy (administrative region), Normandy and the Departments of France, department of Seine-Maritime. Formerly one ...
,
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
, to pay tribute to him on the occasion of his 80th birthday, in recognition of his pioneering achievements that advanced the field of
global optimization Global optimization is a branch of operations research, applied mathematics, and numerical analysis that attempts to find the global minimum or maximum of a function or a set of functions on a given set. It is usually described as a minimization ...
. In September 2011, Professor Hoàng Tụy was named as the first-ever recipient of the
Constantin Carathéodory Constantin Carathéodory (; 13 September 1873 – 2 February 1950) was a Greeks, Greek mathematician who spent most of his professional career in Germany. He made significant contributions to real and complex analysis, the calculus of variations, ...
Prize of the International Society of Global Optimization for his pioneering work and fundamental contributions to global optimization.Website http://www.globaloptimization.org/prizes/isogo-prizes/


Papers

Publications i
Math-Net.Ru
* ''Conical algorithms for solving a concave programming problem and some generalizations'' S. L. Utkin, V. R. Khachaturov, Hoàng Tụy Zh. Vychisl. Mat. Mat. Fiz., 28:7 (1988), 992–999 * ''Solving the linear complementarity problem through concave programming'' Nguyen Van Thoai, Hoang Tuy Zh. Vychisl. Mat. Mat. Fiz., 23:3 (1983), 602–608 * ''Almost affine functions'' Hoàng Tụy Mat. Zametki, 9:4 (1971), 435–440 * ''The structure of measurable functions. II'' Hoàng Tụy Mat. Sb. (N.S.), 54(96):2 (1961), 177–208 * ''On the structure of measurable functions. I'' Hoàng Tụy Mat. Sb. (N.S.), 53(95):4 (1961), 429–488 * ''The “universal primitive” of J. Markusiewicz'' Hoàng Tụy Izv. Akad. Nauk SSSR Ser. Mat., 24:4 (1960), 617–628


Family

An ancestor of Hoàng Tụy was a famous leader of anti-colonial resistance: Hoàng Tụy's son, Hoang Duong Tuan, is now a full professor at the University of Technology, Sydney, Australia, where he is working on the applications of optimization in various engineering fields. His son-in-law, Phan Thien Thach, works also on optimization.


References


External links


An interview in the Optimization Research Bridge newsletter
with tributes from Taketomo Mitsui and Hiroshi Konno.

{{DEFAULTSORT:Hoang, Tuy 20th-century Vietnamese mathematicians 1927 births 2019 deaths Moscow State University alumni People from Quảng Nam province