3-fold

For the plants known as "threefold", see Trixis. For the chess term, see threefold repetition.

In algebraic geometry, a 3-fold or threefold is an algebraic variety of dimension 3.

The Mori program showed that 3-folds have minimal models.

This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.