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Published daily in Bend, Oregon, by Western Communications, Inc. Copyright 2007.
By Dennis Overbye / The Bulletin
March 21, 2010
Seven years ago, a reclusive Russian mathematician startled the scientific world by writing a series of papers claiming to solve one of the most famous and intractable problems in mathematics, called the Poincare conjecture, and then disappearing into the wilds of St. Petersburg.
Grigoriy....
