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Apr 13, 2017 at 12:58 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
Jan 14, 2017 at 18:52 comment added Robert Bryant It might be worth pointing out, though, that, if $X\subset\mathbb{CP}^2$ is a smooth algebraic curve, then its normal bundle is not trivial, and this implies that there cannot be a smooth map $\phi:\mathbb{CP}^2\to\mathbb{R}^3$ that is both an injective immersion when restricted to $X$ and a submersion on an open neighborhood of $X$.
Jan 14, 2017 at 18:33 history answered Sam Nead CC BY-SA 3.0