Harish-Chandra
Born	(1923-10-11)11 October 1923 Kanpur,India
Died	16 October 1983(1983-10-16) (aged 60) Princeton, New Jersey,United States
Citizenship	United States[2]
Alma mater	University of Allahabad University of Cambridge
Known for	Harish-Chandra's c-function Harish-Chandra's character formula Harish-Chandra homomorphism Harish-Chandra isomorphism Harish-Chandra module Harish-Chandra's regularity theorem Harish-Chandra's Schwartz space Harish-Chandra transform Harish-Chandra's Ξ function
Awards	Fellow of the Royal Society[1] Cole Prize in Algebra(1954) Srinivasa Ramanujan Medal
Scientific career
Fields	Mathematics,Physics
Institutions	Indian Institute of Science Harvard University Columbia University Tata Institute of Fundamental Research Institute for Advanced Study

Harish-Chandra (né Harishchandra)FRS^[1][3] (11 October 1923 – 16 October 1983) was anIndian-Americanmathematician andphysicist who did fundamental work inrepresentation theory, especiallyharmonic analysis onsemisimple Lie groups.^[4][5][6]

Harish-Chandra was born inKanpur.^[7] He was educated atB.N.S.D. College, Kanpur and at theUniversity of Allahabad.^[8] After receiving his master's degree inphysics in 1940, he moved to theIndian Institute of Science, Bangalore for further studies underHomi J. Bhabha.^{[citation needed]}

In 1945, he moved toUniversity of Cambridge, and worked as a research student underPaul Dirac.^[8] While at Cambridge, he attended lectures byWolfgang Pauli, and during one of them, Harish-Chandra pointed out a mistake in Pauli's work. The two became lifelong friends. During this time he became increasingly interested in mathematics. He obtained his PhD,Infinite Irreducible Representations of the LorentzGroup, at Cambridge in 1947 under Dirac.^[4]

He was a member of theNational Academy of Sciences and aFellow of the Royal Society.^[1] He was the recipient of theCole Prize of theAmerican Mathematical Society, in 1954. TheIndian National Science Academy honoured him with theSrinivasa Ramanujan Medal in 1974. In 1981, he received an honorary degree fromYale University.^{[citation needed]}

The mathematics department of V.S.S.D. College, Kanpur celebrates his birthday every year in different forms, which includes lectures from students and professors from various colleges, institutes and students' visit to Harish-Chandra Research Institute.^{[citation needed]}

The Indian Government named theHarish-Chandra Research Institute, an institute dedicated to Theoretical Physics and Mathematics, after him.

Robert Langlands wrote in a biographical article of Harish-Chandra:

He was considered for theFields Medal in 1958, but a forceful member of the selection committee in whose eyesThom was aBourbakist was determined not to have two. So Harish-Chandra, whom he also placed on the Bourbaki camp, was set aside.

He was also a recipient of thePadma Bhushan in 1977.^[9]

In 1952, Harish-Chandra married Lalitha "Lily" Kale (1934–2019). Kale, whose father was an Indian food scientist and whose mother was a Polish Jew, was born in Warsaw but grew up inBangalore after her family fled Poland in 1939 or 1940. They had two daughters,Premala Chandra and Devika Chandra; Premala also became a physicist.^[10][11]

Starting in 1969, Harish-Chandra began to experienceheart attacks. A second and third heart attack occurred in 1970 and 1982, respectively. From then, his physical capabilities began to decline. A fourth heart attack occurred in 1983, leaving him mostly bedridden and in isolation. On the day after a conference organized for him and mathematicianArmand Borel took place, Harish-Chandra died from his final heart attack.^[12]

• Harish-Chandra (1968), Mars, J. G. M. (ed.),Automorphic Forms on Semisimple Lie Groups, Lecture Notes in Mathematics, vol. 62, Berlin, New York:Springer-Verlag,doi:10.1007/BFb0098434,ISBN 978-3-540-04232-7,MR 0232893,S2CID 118891017
• Harish-Chandra (1970),Dijk, G. van (ed.),Harmonic Analysis on Reductive p-adic Groups, Lecture Notes in Mathematics, vol. 162, Berlin, New York:Springer-Verlag,doi:10.1007/BFb0061269,ISBN 978-3-540-05189-3,MR 0414797
• Harish-Chandra (1984), Varadarajan, V. S. (ed.),Collected papers. Vol. I. 1944–1954., Berlin, New York:Springer-Verlag,ISBN 978-0-387-90782-6,MR 0726025
• Harish-Chandra (1984), Varadarajan, V. S. (ed.),Collected papers. Vol. II 1955–1958., Berlin, New York:Springer-Verlag,ISBN 978-0-387-90782-6,MR 0726025
• Harish-Chandra (1984), Varadarajan, V. S. (ed.),Collected papers. Vol. III 1959–1968., Berlin, New York:Springer-Verlag,ISBN 978-0-387-90782-6,MR 0726025
• Harish-Chandra (1984), Varadarajan, V. S. (ed.),Collected papers. Vol. IV 1970–1983., Berlin, New York:Springer-Verlag,ISBN 978-0-387-90782-6,MR 0726025
• Harish-Chandra (1999), DeBacker, Stephen; Sally, Paul J. (eds.),Admissible invariant distributions on reductive p-adic groups, University Lecture Series, vol. 16, Providence, R.I.:American Mathematical Society,doi:10.1090/ulect/016,ISBN 978-0-8218-2025-4,MR 1702257

• Doran, Robert S.; Varadarajan, V. S., eds. (2000), "The mathematical legacy of Harish-Chandra",Proceedings of the AMS Special Session on Representation Theory and Noncommutative Harmonic Analysis, held in memory of Harish-Chandra on the occasion of the 75th anniversary of his birth, in Baltimore, MD, January 9–10, 1998, Proceedings of Symposia in Pure Mathematics, vol. 68, Providence, R.I.:American Mathematical Society, pp. xii+551,doi:10.1090/pspum/068,ISBN 978-0-8218-1197-9,MR 1767886
• Srivastava, R. S. L. (1986), "About Harish Chandra",Gaṇita Bhãrati. Indian Society for History of Mathematics. Bulletin,8 (1):42–43,ISSN 0970-0307,MR 0888666
• Varadarajan, V. S. (2003),"Harish-Chandra",Complete Dictionary of Scientific Biography

• Quotations related toHarish-Chandra at Wikiquote
• Biography byRoger Howe

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