I want a closed two dimensional manifold embedded in four dimensions.(adsbygoogle = window.adsbygoogle || []).push({});

Is the following way a good one :

Parametrize a 3 sphere with $$\theta,\phi,\chi$$

Put $$\chi=f(\theta,\phi)$$

Does it make the manifold closed ?

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# How to make a 2-sphere in 4 dimensions

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