Segre surface
id:
segre-surface-306-13182401
title:
Segre surface
text:
In algebraic geometry, a Segre surface, studied by Corrado Segre (1884) and Beniamino Segre (1951), is an intersection of two quadrics in 4-dimensional projective space.
They are rational surfaces isomorphic to a projective plane blown up in 5 points with no 3 on a line, and are del Pezzo surfaces of degree 4, and have 16 rational lines. The term "Segre surface" is also occasionally used for various other surfaces, such as a quadric in 3-dimensional projective space, or the hypersurface
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Segre_surface
date created:
date modified:
2021-04-04T04:08:13Z
main entity:
{"identifier":"Q7446320","url":"https://www.wikidata.org/entity/Q7446320"}
image:
fields total:
13
integrity:
13