Math. the question of whether a compact, simply connected three-dimensional manifold is topologically equivalent to a three-dimensional sphere.
[ named after J. H. POINCARÉ ]
Math. the question of whether a compact, simply connected three-dimensional manifold is topologically equivalent to a three-dimensional sphere.
[ named after J. H. POINCARÉ ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012