Projected dynamical system: Difference between revisions
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In [[mathematics]], in the [[representation theory]] of [[algebraic group]]s, a [[linear representation]] of an algebraic group is said to be '''rational''' if, viewed as a map from the group to the general linear group, it is a rational map of algebraic varieties. | |||
Finite direct sums and products of rational representations are rational. | |||
A rational <math>G</math> module is a module that can be expressed as a sum (not necessarily direct) of rational representations. | |||
{{see|Group representation}} | |||
==References== | |||
* [http://www.jstor.org/view/00029327/di994362/99p00143/ Extensions of Representations of Algebraic Linear Groups] | |||
* [http://www.encyclopediaofmath.org/index.php/Rational_representation Springer Online Reference Works: Rational Representation] | |||
[[Category:Representation theory of algebraic groups]] | |||
{{algebra-stub}} |
Latest revision as of 00:27, 13 May 2013
In mathematics, in the representation theory of algebraic groups, a linear representation of an algebraic group is said to be rational if, viewed as a map from the group to the general linear group, it is a rational map of algebraic varieties.
Finite direct sums and products of rational representations are rational.
A rational module is a module that can be expressed as a sum (not necessarily direct) of rational representations.