Algebraic geometry

Scorza variety

In mathematics, a k-Scorza variety is a smooth projective variety, of maximal dimension among those whose k–1 secant varieties are not the whole of projective space. Scorza varieties were introduced and classified by Zak, who named them after Gaetano Scorza. The special case of 2-Scorza varieties are sometimes called Severi varieties, after Francesco Severi. (Wikipedia).

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Segre embedding | Francesco Severi | Veronese surface | Jordan algebra