# Mathematician:Grigori Yakovlevich Perelman

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## Contents

## Mathematician

Russian mathematician famous for solving Thurston's Geometrization Conjecture, and hence completing the proof of the Poincaré Conjecture.

## Nationality

Russian

## History

- Born: 13 June 1966 in Leningrad, USSR (now St. Petersburg, Russia)

## Theorems and Definitions

## Publications

- 1990:
*Седловые поверхности в евклидовых пространствах:Автореф. дис. на соиск. учен. степ. канд. физ.-мат. наук. Ленинградский Государственный Университет.*(Ph.D. dissertation) - 1992:
*Aleksandrov spaces with curvatures bounded below*(with Yu. Burago and M. Gromov) - 1993:
*Construction of manifolds of positive Ricci curvature with big volume and large Betti numbers* - 1994:
*Proof of the soul conjecture of Cheeger and Gromoll* - 1994:
*Elements of Morse theory on Aleksandrov spaces* - 1994:
*Extremal subsets in Alexandrov spaces and the generalized Liberman theorem*(with A.M. Petrunin) - 11 November 2002:
*The entropy formula for the Ricci flow and its geometric applications* - 10 March 2003:
*Ricci flow with surgery on three-manifolds* - 17 July 2003:
*Finite extinction time for the solutions to the Ricci flow on certain three-manifolds*

## Also known as

In Russian: **Григорий Яковлевич Перельман**.

Usually known by his diminutive **Grisha**.