The map
is known as the Segre threefold. It is an example of a rational normal scroll. The intersection of the Segre threefold and a three-plane is a twisted cubic curve.
Read more about this topic: Segre Embedding, Examples
The map
is known as the Segre threefold. It is an example of a rational normal scroll. The intersection of the Segre threefold and a three-plane is a twisted cubic curve.
Read more about this topic: Segre Embedding, Examples