Grigori Yakovlevich Perelman is a Russian mathematician, who made a history in Riemannian geometry and geometric topology. He was born, 13'th June of 1966 at Leningrad.
Perelman was best known for his work in comparison theorems in Riemannian geometry.
In 1994, Perelman proved the 'Soul Theorem'. (theorem of Riemannian geometry).
In 2003, he proved 'Thurston's geometrization conjecture'.
Geometrization conjecture states that is has three dimensional topological spaces with unique structure.
This theorem solved with positive Poincare opinion, which is considered as one of the most important and toughest problems in topology.
In Aug 2006 Perelman was awarded with the Fields Medal (Which is comparatively equal too Nobel Prize) his contributions to geometry and his revolutionary insights into the analytical and geometric structure of the Ricci flow. However, He declined the award stating that I am not interested in money or fame; I don't want to be on display like an animal in a zoo."
On 22 December 2006, The scientific journal Science recognized Perelman's proof of the Poincare conjecture as the scientific "Breakthrough of the Year".
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