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Elias M. Stein
Born	January January 13, 1931 (1931-01-13) (age 76) Belgium
Nationality	United States
Field	Mathematics
Notable prizes	Rolf Schock Prize Wolf Prize

Elias Menachem Stein (born January 13, 1931) is the Albert Baldwin Dod Professor of Mathematics at Princeton University. His honors include the Steele Prize (1984 and 2002), the Schock Prize in Mathematics (1993), the Wolf Prize in Mathematics (1999), and the National Medal of Science (2002). In addition, he has fellowships to National Science Foundation, Sloan Foundation, Guggenheim, and National Academy of Sciences. In 2005, Stein was awarded the Stefan Bergman prize in recognition of his contributions in real, complex, and harmonic analysis.

Stein was born in Belgium. To escape Nazism, the Stein family fled to the United States, first arriving in New York. He graduated from Stuyvesant High School in 1949,^[1] moving onto the University of Chicago for college. In 1955, Stein earned a Ph.D. from the University of Chicago under the direction of Antoni Zygmund. He began teaching in the Massachusetts Institute of Technology in 1955, moved to the University of Chicago in 1958 as an assistant professor, and in 1963 became a full professor at Princeton, the position he currently holds.

Stein has worked primarily in the field of harmonic analysis, and has made major contributions in both extending and clarifying Calderón-Zygmund theory. These include Stein interpolation (a very useful variable-parameter version of complex interpolation), the Stein maximal principle (showing that under many circumstances, almost everywhere convergence is equivalent to the boundedness of a maximal function), Stein complementary series representations, Nikishin-Pisier-Stein factorization in operator theory, the Tomas-Stein restriction theorem in Fourier analysis, the Kunze-Stein phenomenon in convolution on nilpotent groups, the Cotlar-Stein lemma concerning the sum of almost orthogonal operators, and the Fefferman-Stein theory of the Hardy space H¹ and the space BMO of functions of bounded mean oscillation.

He has written numerous books on harmonic analysis (see e.g. [1,2,4]), which have been so influential in that field that they are often cited as the standard references on the subject. His Princeton Lectures in Analysis series [5,6,7], which he penned for his celebrated sequence of undergratuate courses on analysis at Princeton, is rapidly becoming standard in introductory graduate and advanced undergraduate courses.

Stein is also noted for having trained an unusually high number of successful graduate students (he has had at least 45 students, according to the Mathematics Genealogy Project), who have been very influential in shaping modern Fourier analysis, including two Fields medalists Charles Fefferman, 1978 and Terence Tao, 2006.

Stein has two children, Karen and Jeremy, as well as three grandchildren, Alison, Jason, and Carolyn.

• Stein-Strömberg theorem

• This article incorporates material from Elias Stein on PlanetMath, which is licensed under the GFDL.

• Stein, Elias (1970). Singular Integrals and Differentiability Properties of Functions. Princeton University Press. ISBN 0691080798. 
• Stein, Elias; Weiss, Guido (1971). Introduction to Fourier Analysis on Euclidean Spaces. Princeton University Press. ISBN 069108078X. 
• Stein, Elias (1971). Analytic Continuation of Group Representations. Princeton University Press. ISBN 0300014287. 
• Stein, Elias (1993). Harmonic Analysis: Real-variable Methods, Orthogonality and Oscillatory Integrals. Princeton University Press. ISBN 0691032165. 
• Stein, Elias (2003). Fourier Analysis: An Introduction. Princeton University Press. ISBN 069111384X. 
• Stein, Elias (2003). Complex Analysis. Princeton University Press. ISBN 0691113858. 
• Stein, Elias (2005). Real Analysis: Measure Theory, Integration, and Hilbert Spaces. Princeton University Press. ISBN 0691113866. 

• Elias M. Stein at the Mathematics Genealogy Project
• Citation for Elias Stein for the 2002 Steele prize for lifetime achievement
• Elias Stein Curriculum Vitae