Francis Michael Christ (born 7 June 1955) is an

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

and professor at

University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...

, specializing in

harmonic analysis Harmonic analysis is a branch of mathematics concerned with the representation of Function (mathematics), functions or signals as the Superposition principle, superposition of basic waves, and the study of and generalization of the notions of Fo ...

partial differential equation In mathematics, a partial differential equation (PDE) is an equation which imposes relations between the various partial derivatives of a Multivariable calculus, multivariable function. The function is often thought of as an "unknown" to be sol ...

s, and

several complex variables The theory of functions of several complex variables is the branch of mathematics dealing with complex-valued functions. The name of the field dealing with the properties of function of several complex variables is called several complex variable ...

. He is known for the Christ–Kiselev maximal inequality.

Biography

He received in 1977 from

Harvey Mudd College Harvey Mudd College (HMC) is a private college in Claremont, California, focused on science and engineering. It is part of the Claremont Colleges, which share adjoining campus grounds and resources. The college enrolls 902 undergraduate students ...

his bachelor's degree and in 1982 from the

University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park neighborhood. The University of Chicago is consistently ranked among the b ...

his PhD under the supervision of

Alberto Calderón Alberto Pedro Calderón (September 14, 1920 – April 16, 1998) was an Argentinian mathematician. His name is associated with the University of Buenos Aires, but first and foremost with the University of Chicago, where Calderón and his mentor, t ...

with thesis ''Restrictions of the Fourier transform to submanifolds of low codimension''. At

Princeton University Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest ins ...

, Christ worked with

Elias M. Stein Elias Menachem Stein (January 13, 1931 – December 23, 2018) was an American mathematician who was a leading figure in the field of harmonic analysis. He was the Albert Baldwin Dod Professor of Mathematics, Emeritus, at Princeton University, w ...

from 1982 to 1984 as an instructor and from 1984 to 1986 as an assistant professor. He was at the

University of California, Los Angeles The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California. UCLA's academic roots were established in 1881 as a teachers college then known as the southern branch of the California St ...

(UCLA) from 1986 to 1988 an associate professor and from 1988 to 1996 a full professor. In 1996, he became a full professor at the

. Christ was a Sloan Fellow for the academic year 1986–1987. He was an invited speaker of the

International Congress of Mathematicians The International Congress of Mathematicians (ICM) is the largest conference for the topic of mathematics. It meets once every four years, hosted by the International Mathematical Union (IMU). The Fields Medals, the Nevanlinna Prize (to be rename ...

in 1990 in Kyoto and in 1998 in Berlin. In 1997 he shared with David E. Barrett the Stefan Bergman Prize. He was named to the 2021 class of fellows of the American Mathematical Society "for contributions to harmonic and complex analysis, and linear partial differential equations".

Selected publications

Articles

* Christ, Michael; Journé, Jean-Lin. Polynomial growth estimates for multilinear singular integral operators. Acta Math. 159 (1987), no. 1–2, 51–80. *Christ, Michael. A T(b) theorem with remarks on analytic capacity and the Cauchy integral. Colloq. Math. 60/61 (1990), no. 2, 601–628. * Christ, F.M.; Weinstein, M.I. Dispersion of small amplitude solutions of the generalized Korteweg-de Vries equation. J. Funct. Anal. 100 (1991), no. 1, 87–109. doi:10.1016/0022-1236(91)90103-C * Christ, Michael; Kiselev, Alexander. Maximal functions associated to filtrations. J. Funct. Anal. 179 (2001), no. 2, 409–425. * Christ, Michael; Colliander, James; Tao, Terence. Asymptotics, frequency modulation, and low regularity ill-posedness for canonical defocusing equations. Amer. J. Math. 125 (2003), no. 6, 1235–1293. doi:10.1353/ajm.2003.0040

Books

References

External links

* * {{DEFAULTSORT:Christ, Michael 20th-century American mathematicians 21st-century American mathematicians Harvey Mudd College alumni University of California, Los Angeles faculty University of California, Berkeley College of Letters and Science faculty Complex analysts American mathematical analysts 1955 births Living people Fellows of the American Mathematical Society