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Dennis Gaitsgory is a professor of mathematics at Harvard University known for his research on the geometric Langlands program. Born in what is now Moldova, he grew up in Tajikistan, before studying at Tel Aviv University under Joseph Bernstein (1990–1996). He received his doctorate in 1997 for a thesis entitled "Automorphic Sheaves and Eisenstein Series". He has been awarded a Harvard Junior Fellowship, a Clay Research Fellowship, and the prize of the European Mathematical Society for his work.

Dennis Gaitsgory
Dennis Gaitsgory.jpg
NationalityIsraeli American
Alma materTel Aviv University
AwardsEMS Prize (2000) Chevalley Prize (2018)
Scientific career
InstitutionsHarvard University
University of Chicago
Doctoral advisorJoseph Bernstein

His work in geometric Langlands culminated in a joint 2002 paper with Edward Frenkel and Kari Vilonen, On the geometric Langlands conjecture establishing the conjecture for finite fields, and a separate 2004 paper, On a vanishing conjecture appearing in the geometric Langlands correspondence, generalizing the proof to include the field of complex numbers as well.

Prior to his 2005 appointment at Harvard he was an associate professor at the University of Chicago from 2001–2005.

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