Alexandre Chorin

Alexandre Joel Chorin
Born	(1938-06-25) June 25, 1938 (age 86) Warsaw, Poland
Nationality	American
Alma mater	EPFL New York University Courant Institute of Mathematical Sciences
Known for	Artificial Compressibility Method Projection Method Random Vortex Method Implicit Sampling
Scientific career
Fields	Mathematics
Institutions	University of California, Berkeley, Courant Institute of Mathematical Sciences
Thesis	Numerical Study of Thermal Convection in a Fluid Layer Heated from Below (1966)
Doctoral advisor	Peter D. Lax
Doctoral students	Phillip Colella Charles S. Peskin James Sethian

Alexandre Joel Chorin (born 25 June 1938) is an American mathematician known for his contributions to computational fluid mechanics, turbulence, and computational statistical mechanics.

Chorin's work involves developing methods for solving physics and fluid mechanics problems computationally. His early work introduced several widely used numerical methods for solving the Navier-Stokes equations, including the method of artificial compressibility,^[1] the projection method,^[2] and vortex methods.^[3] He has made numerous contributions to turbulence theory.^[4] In recent years he has been developing methods for prediction in the face of uncertainty ^[5] and for filtering and data assimilation.^[6]

Career

Chorin is a University Professor at the University of California, a Professor of Mathematics at the University of California, Berkeley and a Senior Scientist at the Lawrence Berkeley National Laboratory.

Chorin received the Ing. Dipl. Physics degree from the EPFL (École Polytechnique Fédérale de Lausanne) in 1961, an M.S. in Mathematics from New York University in 1964, and a PhD in Mathematics from New York University in 1966.

Chorin is widely recognized for his mentoring of graduate students^[7] and postdoctoral fellows, many of whom have become nationally and internationally recognized scientists in their own right. In 2008 he was honored with the Sarlo mentoring award by the University of California, Berkeley.^[8]

Awards

Chorin's awards include the National Academy Award in Applied Mathematics and Numerical Analysis (1989), the Norbert Wiener Prize of the American Mathematical Society and the Society for Industrial and Applied Mathematics (2000),^[9] the Lagrange Prize of the International Council on Industrial and Applied Mathematics (2011) and the National Medal of Science (2012).^[10][11] He is a member of the US National Academy of Sciences and a fellow of the American Academy of Arts and Sciences, the Society for Industrial and Applied Mathematics, and the American Mathematical Society.

Journal publications

1. Chorin, A. J. (1967). "A numerical method for solving incompressible viscous flow problems". Journal of Computational Physics 2 (1): 12–26. doi:10.1016/0021-9991(67)90037-X. Bibcode: 1967JCoPh...2...12C. 
2. Chorin, A. J. "A numerical method for solving incompressible viscous flow problems" J. Comput. Phys. 2 (1967), pp. 12-26.
3. Chorin, A. J. Numerical solution of the Navier-Stokes equations Math. Comp. 22 (1968) pp. 745-762
4. Chorin, A. J., Numerical study of slightly viscous flow, J. Fluid. Mech. 57 (1973), pp. 785-796.^{[yes|permanent dead link|dead link}}]}
5. Chorin, A.J., Hald, O.H., and Kupferman, R., Optimal prediction and the Mori-Zwanzig representation of irreversible processes, Proc. Natl. Acad. Sci. USA 97 (2000), pp. 2968–2973.
6. Chorin, A.J. and Tu, X., Implicit sampling for particle filters, Proc. Natl. Acad. Sci. USA 106 (2009), pp. 17249–17254.

Books authored

• Chorin, Alexandre J.; Marsden, Jerrold E. (1993). A Mathematical Introduction to Fluid Mechanics. Texts in Applied Mathematics. 4 (3rd ed.). New York: Springer Verlag. ISBN 0387979182. 
• Chorin, A. J., "Vorticity and Turbulence", Springer-Verlag (1994).^[12]
• Chorin, A.J. and O.H. Hald, "Stochastic Tools in Mathematics and Science", Springer-Verlag, 3rd ed., (2013).

References

External links

• Alexandre Chorin at the Mathematics Genealogy Project

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