- rational variety
- мат. рациональное многообразие
Большой англо-русский и русско-английский словарь. 2001.
rational variety
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Rational variety — In mathematics, a rational variety is an algebraic variety, over a given field K, which is birationally equivalent to projective space of some dimension over K. This is a question on its function field: is it up to isomorphism the field of all… … Wikipedia
Rational surface — In algebraic geometry, a branch of mathematics, a rational surface is a surface birationally equivalent to the projective plane, or in other words a rational variety of dimension two. Rational surfaces are the simplest of the 10 or so classes of… … Wikipedia
Rational mapping — In mathematics, in particular the subfield of algebraic geometry, a rational map is a kind of partial function between algebraic varieties. In this article we use the convention that varieties are irreducible.DefinitionA first attemptSuppose we… … Wikipedia
Rational point — In number theory, a K rational point is a point on an algebraic variety where each coordinate of the point belongs to the field K . This means that, if the variety is given by a set of equations: fi(x1, ..., xn) =0, j=1, ..., m then the K… … Wikipedia
Rational normal curve — In mathematics, the rational normal curve is a smooth, rational curve C of degree n in projective n space mathbb{P}^n. It is a simple example of a projective variety. The twisted cubic is the special case of n =3.DefinitionThe rational normal… … Wikipedia
Rational addiction — The hypothesis that addictions (to heroin, tobacco, television, etc.) can be usefully modeled as a specific kind of rational, forward looking, optimal consumption plans. The canonical theory is due to Kevin M. Murphy and Nobel Prize Winner Gary S … Wikipedia
IBM Rational ClearQuest — Rational ClearQuest Developer(s) Rational Software Stable release 8.0 / October 10, 2011; 42 days ago (2011 10 10) Development status Active … Wikipedia
Function field of an algebraic variety — In algebraic geometry, the function field of an algebraic variety V consists of objects which are interpreted as rational functions on V . In complex algebraic geometry these are meromorphic functions and their higher dimensional analogues; in… … Wikipedia
Toric variety — In algebraic geometry, a toric variety or torus embedding is a normal variety containing an algebraic torus as a dense subset, such that the action of the torus on itself extends to the whole variety. Contents 1 The toric variety of a fan 2… … Wikipedia
IBM Rational Business Developer Extension — Infobox Software name = IBM Rational Business Developer caption = Rational Business Developer developer = IBM released = ? frequently updated = yes programming language = ? operating system = language = English genre = license = IBM EULA website … Wikipedia
IBM Rational Software Architect — Infobox Software name = IBM Rational Software Architect caption = Rational Software Architect with Design Model Diagram developer = IBM released = ? frequently updated = yes programming language = ? operating system = language = ? genre =… … Wikipedia
