http://ringm.livejournal.com/ ([identity profile] ringm.livejournal.com) wrote in [personal profile] sly2m 2010-12-22 07:49 pm (UTC)

Видео пока не смотрел, но гипотеза Пуанкаре применима только к замкнутым многообразиям, очевидный контрпример - R^3. При чем тут "наше пространство"?
https://secure.wikimedia.org/wikipedia/en/wiki/Shape_of_the_Universe#Open_or_closed
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