Ludvig Dmitrievich Faddeev (also ''Ludwig Dmitriyevich''; russian: Лю́двиг Дми́триевич Фадде́ев; 23 March 1934 – 26 February 2017) was a

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

and

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

mathematical physicist Mathematical physics refers to the development of mathematical methods for application to problems in physics. The ''Journal of Mathematical Physics'' defines the field as "the application of mathematics to problems in physics and the developmen ...

. He is known for the discovery of the

Faddeev equations The Faddeev equations, named after their inventor Ludvig Faddeev, are equations that describe, at once, all the possible exchanges/interactions in a system of three particles in a fully quantum mechanical formulation. They can be solved iterat ...

in the theory of the quantum mechanical

three-body problem In physics and classical mechanics, the three-body problem is the problem of taking the initial positions and velocities (or momenta) of three point masses and solving for their subsequent motion according to Newton's laws of motion and Newton's ...

and for the development of path integral methods in the quantization of non-abelian gauge field theories, including the introduction (with Victor Popov) of

Faddeev–Popov ghost In physics, Faddeev–Popov ghosts (also called Faddeev–Popov gauge ghosts or Faddeev–Popov ghost fields) are extraneous fields which are introduced into gauge quantum field theories to maintain the consistency of the path integral formulati ...

s. He led the Leningrad School, in which he along with many of his students developed the

quantum inverse scattering method In quantum physics, the quantum inverse scattering method is a method for solving integrable models in 1+1 dimensions, introduced by L. D. Faddeev in 1979. The quantum inverse scattering method relates two different approaches: #the Bethe an ...

for studying quantum integrable systems in one space and one time dimension. This work led to the invention of

quantum group In mathematics and theoretical physics, the term quantum group denotes one of a few different kinds of noncommutative algebras with additional structure. These include Drinfeld–Jimbo type quantum groups (which are quasitriangular Hopf algebras) ...

s by

Drinfeld Vladimir Gershonovich Drinfeld ( uk, Володи́мир Ге́ршонович Дрінфельд; russian: Влади́мир Ге́ршонович Дри́нфельд; born February 14, 1954), surname also romanized as Drinfel'd, is a renowne ...

and

Jimbo Jimbo is a diminutive form of the given name James. It is also a Japanese surname, and it means state or province in Swahili. It may refer to: Given name or nickname * Jimbo (drag queen), Canadian drag queen * Jimbo Aquino (born 1985), Filipin ...

Biography

Faddeev was born in

Leningrad Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

to a family of mathematicians. His father, Dmitry Faddeev, was a well known algebraist, professor of

Leningrad University Saint Petersburg State University (SPBU; russian: Санкт-Петербургский государственный университет) is a public research university in Saint Petersburg, Russia. Founded in 1724 by a decree of Peter the G ...

and member of the

Russian Academy of Sciences The Russian Academy of Sciences (RAS; russian: Росси́йская акаде́мия нау́к (РАН) ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across t ...

. His mother,

Vera Faddeeva Vera Faddeeva (russian: Вера Николаевна Фаддеева; Vera Nikolaevna Faddeeva; 1906–1983) was a Soviet mathematician. Faddeeva published some of the earliest work in the field of numerical linear algebra. Her 1950 work, ''Com ...

, was known for her work in numerical linear algebra. Faddeev attended

, receiving his undergraduate degree in 1956. He enrolled in physics, rather than mathematics, "to be independent of isfather". Nevertheless, he received a solid education in mathematics as well "due to the influence of V. A. Fock and V. I. Smirnov". His doctoral work, on scattering theory, was completed in 1959 under the direction of

Olga Ladyzhenskaya Olga Aleksandrovna Ladyzhenskaya (russian: Óльга Алекса́ндровна Лады́женская, link=no, p=ˈolʲɡə ɐlʲɪˈksandrəvnə ɫɐˈdɨʐɨnskəɪ̯ə, a=Ru-Olga Aleksandrovna Ladyzhenskaya.wav; 7 March 1922 – 12 Jan ...

. From 1976 to 2000, Faddeev was head of the

St. Petersburg Department of Steklov Institute of Mathematics of Russian Academy of Sciences The St. Petersburg Department of Steklov Institute of Mathematics of the Russian Academy of Sciences (russian: Санкт-Петербургское отделение Математического института им. В. А. Стеклова ...

(PDMI RAS). He was an invited visitor to the

CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in a northwestern suburb of Gene ...

Theory Division for the first time in 1973 and made several further visits there. In 1988 he founded the Euler International Mathematical Institute, now a department of PDMI RAS.

Honours and awards

Faddeev was a member of the

since 1976, and was a member of a number of foreign academies, including the U. S. National Academy of Sciences, the

French Academy of Sciences The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV of France, Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific me ...

, the Austrian Academy of Sciences, the

Brazilian Academy of Sciences The Brazilian Academy of Sciences ( pt, italic=yes, Academia Brasileira de Ciências or ''ABC'') is the national academy of Brazil. It is headquartered in the city of Rio de Janeiro and was founded on May 3, 1916. Publications It publishes a lar ...

, the

Royal Swedish Academy of Sciences The Royal Swedish Academy of Sciences ( sv, Kungliga Vetenskapsakademien) is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special ...

and the

Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...

. He received numerous honors including

USSR State Prize The USSR State Prize (russian: links=no, Государственная премия СССР, Gosudarstvennaya premiya SSSR) was the Soviet Union's state honor. It was established on 9 September 1966. After the dissolution of the Soviet Union, t ...

(1971), Dannie Heineman Prize (1975),

Dirac Prize Distributed Research using Advanced Computing (DiRAC) is an integrated supercomputing facility used for research in particle physics, astronomy and cosmology in the United Kingdom. DiRAC makes use of multi-core processors and provides a variety o ...

(1990), an

honorary doctorate An honorary degree is an academic degree for which a university (or other degree-awarding institution) has waived all of the usual requirements. It is also known by the Latin phrases ''honoris causa'' ("for the sake of the honour") or ''ad hon ...

from the Faculty of Mathematics and Science at

Uppsala University Uppsala University ( sv, Uppsala universitet) is a public university, public research university in Uppsala, Sweden. Founded in 1477, it is the List of universities in Sweden, oldest university in Sweden and the Nordic countries still in opera ...

Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...

Max Planck Medal The Max Planck medal is the highest award of the German Physical Society , the world's largest organization of physicists, for extraordinary achievements in theoretical physics. The prize has been awarded annually since 1929, with few exceptions, ...

(1996), Demidov Prize (2002 – "For outstanding contribution to the development of mathematics, quantum mechanics, string theory and solitons") and the

State Prize of the Russian Federation The State Prize of the Russian Federation, officially translated in Russia as Russian Federation National Award, is a state honorary prize established in 1992 following the breakup of the Soviet Union. In 2004 the rules for selection of laureates ...

(1995, 2004). He was president of the

International Mathematical Union The International Mathematical Union (IMU) is an international non-governmental organization devoted to international cooperation in the field of mathematics across the world. It is a member of the International Science Council (ISC) and supports ...

(1986–1990). He was awarded the Henri Poincaré Prize in 2006 and the Shaw Prize in mathematical sciences in 2008. Also the Karpinsky International Prize and the Max Planck Medal (German Physical Society). He also received the

Lomonosov Gold Medal The Lomonosov Gold Medal (russian: Большая золотая медаль имени М. В. Ломоносова ''Bol'shaya zolotaya medal' imeni M. V. Lomonosova''), named after Russian scientist and polymath Mikhail Lomonosov, is awarde ...

for 2013. Faddeev also received state awards: *

Order of Merit for the Fatherland Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

; ** 3rd class (25 October 2004) – for outstanding contribution to the development of fundamental and applied domestic science and many years of fruitful activity ** 4th class (4 June 1999) – for outstanding contribution to the development of national science and training of highly qualified personnel in connection with the 275th anniversary of the Russian Academy of Sciences *

Order of Friendship The Order of Friendship (russian: Орден Дружбы, ') is a state decoration of the Russian Federation established by Boris Yeltsin by presidential decree 442 of 2 March 1994 to reward Russian and foreign nationals whose work, deeds a ...

(6 June 1994) – for his great personal contribution to the development of mathematical physics and training of highly qualified scientific personnel *

Order of Lenin The Order of Lenin (russian: Орден Ленина, Orden Lenina, ), named after the leader of the Russian October Revolution, was established by the Central Executive Committee on April 6, 1930. The order was the highest civilian decoration b ...

Order of the Red Banner of Labour The Order of the Red Banner of Labour (russian: Орден Трудового Красного Знамени, translit=Orden Trudovogo Krasnogo Znameni) was an order of the Soviet Union established to honour great deeds and services to th ...

in Science and Technology 2004 (6 June 2005), for outstanding achievement in the development of mathematical physics and in 1995 for science and technology (20 June 1995), for the monograph "Introduction to quantum gauge field theory" *

(1971) * Honorary citizen of St. Petersburg (2010) * Academician (Finland) (1991)

Selected works

Source: * * * * *

Notes

References

* * L. A. Takhtajan et al., Scientific heritage of L. D. Faddeev. Review of works, Russian Mathematical Surveys (2017), 72 (6):977,

External links

*
faddeev.com
{{DEFAULTSORT:Faddeev, Ludvig 1934 births 2017 deaths Scientists from Saint Petersburg Russian inventors Soviet mathematicians Soviet physicists 20th-century Russian physicists Members of the French Academy of Sciences Donegall Lecturers of Mathematics at Trinity College Dublin Full Members of the USSR Academy of Sciences Full Members of the Russian Academy of Sciences Foreign associates of the National Academy of Sciences Foreign Members of the Royal Society Foreign members of the Chinese Academy of Sciences Members of the Finnish Academy of Science and Letters Recipients of the Order "For Merit to the Fatherland", 3rd class Recipients of the Order of Honour (Russia) State Prize of the Russian Federation laureates Demidov Prize laureates Recipients of the USSR State Prize Recipients of the Order of Friendship of Peoples Recipients of the Order of Lenin Recipients of the Lomonosov Gold Medal People associated with CERN Winners of the Max Planck Medal Presidents of the International Mathematical Union Members of the Royal Swedish Academy of Sciences