Sergiu Klainerman

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Romanian American mathematician

title: "Sergiu Klainerman" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["1950-births", "living-people", "scientists-from-bucharest", "romanian-jews", "university-of-bucharest-alumni", "20th-century-american-mathematicians", "21st-century-american-mathematicians", "20th-century-romanian-mathematicians", "members-of-the-french-academy-of-sciences", "members-of-the-united-states-national-academy-of-sciences", "princeton-university-faculty", "courant-institute-of-mathematical-sciences-alumni", "fellows-of-the-american-academy-of-arts-and-sciences", "fellows-of-the-american-mathematical-society", "macarthur-fellows", "courant-institute-of-mathematical-sciences-faculty", "partial-differential-equation-theorists", "jewish-american-scientists", "21st-century-romanian-mathematicians", "romanian-emigrants-to-the-united-states", "american-people-of-romanian-jewish-descent", "21st-century-american-jews", "tudor-vianu-national-college-of-computer-science-alumni", "recipients-of-the-national-order-of-merit-(romania)"] description: "Romanian American mathematician" topic_path: "technology/web" source: "https://en.wikipedia.org/wiki/Sergiu_Klainerman" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Romanian American mathematician ::

::data[format=table title="Infobox scientist"]

FieldValue
nameSergiu Klainerman
imageSergiu Klainerman.jpg
image_size220px
captionSergiu Klainerman in 1978
birth_date
birth_placeBucharest, Romanian People's Republic
death_date
nationalityRomanian American
fieldsMathematics
workplacesUniversity of California, Berkeley
New York University
Princeton University
alma_materUniversity of Bucharest
New York University
thesis_titleGlobal Existence for Nonlinear Wave Equations
thesis_urlhttps://bobcat.library.nyu.edu/permalink/f/ci13eu/nyu_aleph001044164
thesis_year1978
doctoral_advisorsFritz John
Louis Nirenberg
doctoral_studentsGustavo Ponce
awardsBôcher Prize (1999)
::

| name = Sergiu Klainerman | image = Sergiu Klainerman.jpg | image_size = 220px | alt = | caption = Sergiu Klainerman in 1978 | birth_date = | birth_place = Bucharest, Romanian People's Republic | death_date =
| death_place = | nationality = Romanian American | fields = Mathematics | workplaces = University of California, Berkeley New York University Princeton University | alma_mater = University of Bucharest New York University | thesis_title = Global Existence for Nonlinear Wave Equations | thesis_url = https://bobcat.library.nyu.edu/permalink/f/ci13eu/nyu_aleph001044164 | thesis_year = 1978 | doctoral_advisors = Fritz John Louis Nirenberg | doctoral_students = Gustavo Ponce | known_for = | awards = Bôcher Prize (1999)

Sergiu Klainerman (born May 13, 1950) is a mathematician known for his contributions to the study of hyperbolic differential equations and general relativity. He is currently the Eugene Higgins Professor of Mathematics at Princeton University, where he has been teaching since 1987.

Biography

He was born in 1950 in Bucharest, Romania, into a Jewish family. After attending the Petru Groza High School, he studied mathematics at the University of Bucharest from 1969 to 1974. For graduate studies he went to New York University, obtaining his Ph.D. in 1978. His thesis, written under the direction of Fritz John and Louis Nirenberg, was titled Global Existence for Nonlinear Wave Equations. From 1978 to 1980 Klainerman was a Miller Research Fellow at the University of California, Berkeley, while from 1980 to 1987 he was a faculty member at New York University's Courant Institute of Mathematical Sciences, rising in rank to Professor in 1986.

Klainerman is a member of the U.S. National Academy of Sciences (elected 2005), a foreign member of the French Academy of Sciences (elected 2002) and a Fellow of the American Academy of Arts and Sciences (elected 1996). In 2003, he was awarded the Romanian Order of Merit, Commander rank. He was elected to the 2018 class of fellows of the American Mathematical Society.

He was named a MacArthur Fellow in 1991 and Guggenheim Fellow in 1997. Klainerman was awarded the Bôcher Memorial Prize by the American Mathematical Society in 1999 "for his contributions to nonlinear hyperbolic equations". He is currently a co-Editor-in-Chief of Publications Mathématiques de l'IHÉS.

Major publications

  • Klainerman, Sergiu; Majda, Andrew. Compressible and incompressible fluids. Comm. Pure Appl. Math. 35 (1982), no. 5, 629–651.
  • Klainerman, Sergiu. Global existence of small amplitude solutions to nonlinear Klein-Gordon equations in four space-time dimensions. Comm. Pure Appl. Math. 38 (1985), no. 5, 631–641.
  • Klainerman, Sergiu. Uniform decay estimates and the Lorentz invariance of the classical wave equation. Comm. Pure Appl. Math. 38 (1985), no. 3, 321–332.
  • Klainerman, S. The null condition and global existence to nonlinear wave equations. Nonlinear systems of partial differential equations in applied mathematics, Part 1 (Santa Fe, N.M., 1984), 293–326, Lectures in Appl. Math., 23, Amer. Math. Soc., Providence, RI, 1986.
  • Klainerman, S.; Machedon, M. Space-time estimates for null forms and the local existence theorem. Comm. Pure Appl. Math. 46 (1993), no. 9, 1221–1268.
  • Klainerman, S.; Machedon, M. Smoothing estimates for null forms and applications. A celebration of John F. Nash, Jr., Duke Mathematical Journal 81 (1995), no. 1, 99–133 (1996).
  • Klainerman, Sergiu; Sideris, Thomas C. On almost global existence for nonrelativistic wave equations in 3D. Comm. Pure Appl. Math. 49 (1996), no. 3, 307–321.

Books

  • Christodoulou, Demetrios; Klainerman, Sergiu. The global nonlinear stability of the Minkowski space. Princeton Mathematical Series, 41. Princeton University Press, Princeton, NJ, 1993. x+514 pp.
  • Klainerman, Sergiu; Nicolò, Francesco. The evolution problem in general relativity. Progress in Mathematical Physics, 25. Birkhäuser Boston, Inc., Boston, MA, 2003. xiv+385 pp.

References

References

  1. [http://www.ams.org/notices/199904/comm-bocher-prz.pdf 1999 Bôcher Prize] {{Webarchive. link. (2012-07-16 , [[Notices of the American Mathematical Society]], vol. 46 (1999), no. 4, pp. 463-466)
  2. (September 7, 2020). "Sergiu Klainerman: Nu este suficient să apărăm libertatea de exprimare și neutralitatea. O strategie de apărăre a culturii occidentale e necesară". Ziare.com.
  3. "Sergiu Klainerman's Curriculum Vitae".
  4. {{MathGenealogy
  5. [https://www.ams.org/notices/200507/people.pdf National Academy of Sciences elections], [[Notices of the American Mathematical Society]], vol. 52 (2005), no. 7, p. 764
  6. [http://www.academie-sciences.fr/membres/K/Klainerman_Sergiu.htm Sergiu Klainerman bio page] {{Webarchive. link. (2009-11-29 , [[French Academy of Sciences]]. Accessed January 13, 2010.)
  7. [http://www.ams.org/notices/199607/people.pdf American Academy Elections.] {{Webarchive. link. (2016-03-03 [[Notices of the American Mathematical Society]], vol. 43 (1996), no. 7, p. 781)
  8. (June 16, 2003). "Decret nr. 370 din 11 iunie 2003". [[Monitorul Oficial]].
  9. "2018 Class of the Fellows of the AMS". [[American Mathematical Society]].
  10. [http://www.macfound.org/site/c.lkLXJ8MQKrH/b.1142705/k.28E8/Fellows_List__July_1991.htm MacArthur Fellows, July 1991] {{webarchive. link. (2007-09-29 , [[MacArthur Foundation]]. Accessed January 13, 2010.)
  11. link. (2011-06-03 [[John Simon Guggenheim Memorial Foundation). Guggenheim Foundation]]. Accessed January 13, 2010.
  12. [https://www.ihes.fr/jsp/site/Portal.jsp?page_id=29 Editorial Board], [[Publications Mathématiques de l'IHÉS]]. Accessed January 13, 2010

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