3 ms·
You can tie a 2-knot (a sphere) in 4D. And in general, an n-sphere knots in n+2 dimensions. You even get new kinds of knot moves in higher dimensions.
by zmgsabst 3y ago
You can tie a 2-knot (a sphere) in 4D.
And in general, an n-sphere knots in n+2 dimensions. You even get new kinds of knot moves in higher dimensions.