Assertion: scheme | /r/HasProperty | mathematical structure
Facets:
value: in mathematics
type: OTHER
Source sentences:
text: In mathematics, a scheme is a mathematical structure that enlarges the notion of algebraic variety in several ways, such as taking account of multiplicities (the equations x = 0 and x2 = 0 define the same algebraic variety and different schemes) and allowing "varieties" defined over any commutative ring (for example, Fermat curves are defined over the integers).