Edward Bierstone

Edward Beer Stone ( born December 21, 1946 in Toronto, Ontario ) is a Canadian mathematician who deals with algebraic geometry, singularity theory and differential geometry.

Stone beer made ​​in 1969 his master's degree in mathematics from the University of Toronto and received his PhD in 1973 with Richard Palais at Brandeis University. From 1973 he was back at the University of Toronto, where he became professor in 1982. He was a visiting professor in France and Brazil, was at the Institut des Hautes Études Scientifiques ( IHES ) and the Institute for Advanced Study ( 1973).

Beer Stone succeeded with Pierre Milman a significant simplification of the proof of resolution of singularities over fields of characteristic 0 of Heisuke Hironaka reach, was the proof of 1964 to be very complicated and opaque. At the same time was her evidence " effectively " ( an algorithmic version). By Milman and Wieslaw Pawlucki he wore in 2003 to solve a problem of Hassler Whitney on the extension of differentiable functions, then on this basis was solved by Charles Fefferman.

Since 1992 he is a member of the Royal Society of Canada. In 2005 he was awarded with the Pierre Milman Jeffery -Williams Prize. Since 2002 he is a Fellow of the Fields Institute ( which is located at the University of Toronto ), and since 2009 its director. He is a Fellow of the American Mathematical Society.