Cox ring

In algebraic geometry, a Cox ring is a sort of universal homogeneous coordinate ring for a projective variety, and is (roughly speaking) a direct sum of the spaces of sections of all isomorphism classes of line bundles.

Cox rings were introduced by Hu & Keel (2000), based on an earlier construction by David A. Cox in 1995 for toric varieties.

This algebraic geometry–related article is a stub.

You can help Wikipedia by expanding it.