Representation

Representation may refer to:

Law and politics

Representation (politics), political activities undertaken by elected representatives, as well as other theories
- Representative democracy, type of democracy in which elected officials represent a group of people
Representation in contract law, a pre-contractual statement that may (if untrue) result in liability for misrepresentation
Labor representation, or worker representation, the work of a union representative who represents and defends the interests of fellow labor union members
Legal representation, provided by a barrister, lawyer, or other advocate
Lobbying or interest representation, attempts to influence the actions, policies, or decisions of officials
"No taxation without representation", a 1700s slogan that summarized one of the American colonists' 27 colonial grievances in the Thirteen Colonies, which was one of the major causes of the American Revolution
Permanent representation, a type of diplomatic mission

Representation (arts), use of signs that stand in for and take the place of something else
Representation (journal), an academic journal covering representative democracy
Depiction, non-verbal representation through two-dimensional images (pictures) of things seen, remembered or imagined

Representation (psychology) (also "mental representation" or "cognitive representation"), a hypothetical 'internal' cognitive symbol that represents external reality
Knowledge representation, the study of formal ways to describe knowledge
Representation theory (linguistics), a theoretical framework in generative linguistics

Representation (mathematics), a very general relationship that expresses similarities between objects
- Group representation, describes abstract groups in terms of linear transformations of vector spaces
- Representation of a Lie group, a linear action of a Lie group on a vector space
- Lie algebra representation, a way of writing a Lie algebra as a set of matrices in such a way that the Lie bracket is given by the commutator
Multiple representations (mathematics education), ways to symbolize, to describe and to refer to the same mathematical entity

Representation (chemistry), graphic representation of the molecular structure of a chemical compound
Social representation, a stock of values, ideas, beliefs, and practices that are shared among the members of groups and communities
Representative sample in statistics