Bernard Malgrange was born in 1928 in Paris. In 1947-51 he was studying mathematics at the École Normale Superieure, where his professor was Henri Cartan.

After having received in 1951 a grant from the CNRS, Malgrange went to Nancy to prepare his doctoral thesis at the Université Henri Poincare, where his advisor was Laurent Schwartz, working then on his treatise on distribution theory. In 1955 Malgrange defended his thesis Existence et approximation des solutions des équations aux dérivées partielles et des équations de convolution, based on the distribution theory.

He was consecutively working at universities in Strasbourg, Paris, Orsay (1965-1969) and Grenoble (1969-1973). In 1973 he became the director of research at the CNRS. He was elected to the Académie des sciences in 1988.

His publications concern linear partial differential equations, differential geometry, non-linear differential equations, singularities of functions and mappings (in connexion with works of René Thom), algebraic theory of differential equations. The most known of his results are the Ehrenpreis-Malgrange theorem and the Malgrange Preparation Theorem, proved in his very popular book Ideals od Differentiable Functions, Oxford University Press, 1966.

(Photo by Yousuke Ohyama.)

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Marcin Pitera

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Pn, 02 kwi 2012 16:52:55 +0000