Lei Ni
Mathematician (born 1969)
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Lei Ni (born 1969) is a mathematician. He holds emeritus professor status at the University of California, San Diego (UCSD). He was elected a Fellow of the American Mathematical Society in 2018.
Ni was born in 1969,[1] and from 1987 to 1993 attended Fudan University in China, from where he received a B.S. and M.S. degree in mathematics. He studied at the University of California, Irvine, from 1994 to 1998, and received a Ph.D. in mathematics,[2] advised by Peter Wai-Kwong Li.[3] Ni was an assistant professor at Purdue University from 1998 to 2000 and at Stanford University from 2000 to 2002, before moving to UC San Diego in 2002.[2]
From 2002 to 2005, Ni worked as an assistant professor at UCSD, and from 2005 to 2009 as an associate professor.[2] He received a Sloan Research Fellowship in 2004.[4] Ni served as chair of the mathematics department from 2016 to 2020,[2] during which time, in 2018,[5] he was elected a Fellow of the American Mathematical Society for "contributions to geometric analysis, particularly to Ricci flow, and for mentorship".[6] Since 2025, Ni has been an emeritus professor with Distinguished Professor title,[2] in recognition of his career at the university.[7]
His research areas include geometric analysis, Riemannian geometry, and partial differential equations.[8] He has given talks on these topics to the Simons Laufer Mathematical Sciences Institute.[9] His publications on the Ricci flow include a 2006 book in the Graduate Studies in Mathematics series,[10][11] and a four-part book in Mathematical Surveys and Monographs.[12][13]