Sunday, 26 November 2006

ag.algebraic geometry - Degrees of subvarieties of projective space

I've always thought of the degree of a subvariety of projective space as the degree of the divisor that defines the (given) embedding into projective space. It's been pointed out to me that this works only for curves. Now I'm confused: is there a similar characterization of the degree of a general subvariety of some projective space?

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