Bernard Malgrange (born 6 July 1928) is a French
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 ...
who works on
differential equation
In mathematics, a differential equation is an equation that relates one or more unknown functions and their derivatives. In applications, the functions generally represent physical quantities, the derivatives represent their rates of change, an ...
s and
singularity theory
In mathematics, singularity theory studies spaces that are almost manifolds, but not quite. A string can serve as an example of a one-dimensional manifold, if one neglects its thickness. A singularity can be made by balling it up, dropping it ...
. He proved the
Ehrenpreis–Malgrange theorem and the
Malgrange preparation theorem, essential for the classification theorem of the elementary
catastrophes of
René Thom
René Frédéric Thom (; 2 September 1923 – 25 October 2002) was a French mathematician, who received the Fields Medal in 1958.
He made his reputation as a topologist, moving on to aspects of what would be called singularity theory; he became w ...
. He received his
Ph.D.
A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is a ...
from
Université Henri Poincaré (Nancy 1) in 1955. His advisor was
Laurent Schwartz
Laurent-Moïse Schwartz (; 5 March 1915 – 4 July 2002) was a French mathematician. He pioneered the theory of distributions, which gives a well-defined meaning to objects such as the Dirac delta function. He was awarded the Fields Medal in 19 ...
. He was elected to the
Académie des sciences
The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research. It was at the ...
in 1988. In 2012 he gave the
Łojasiewicz Lecture (on "Differential algebraic groups") at the
Jagiellonian University in Kraków.
Publications
*''Ideals of differentiable functions'' (Oxford University Press, 1966)
*''Équations différentielles à coefficients polynomiaux'', Progress in Mathematics (Birkhäuser, 1991).
References
External links
*
* Académie des sciences page o
Bernard Malgrange
See also
*
Malgrange–Zerner theorem
1928 births
Living people
École Normale Supérieure alumni
20th-century French mathematicians
21st-century French mathematicians
Members of the French Academy of Sciences
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