# Co-basis

From Encyclopedia of Mathematics

A basis of a dual or adjoint space.

#### Comments

A co-basis is also called a dual basis. Often the terminology "dual basis" or "co-basis" of is used to denote a basis of such that (the Kronecker delta), where is a given basis of . The pair is referred to as a pair of dual bases.

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Co-basis.

*Encyclopedia of Mathematics.*URL: http://encyclopediaofmath.org/index.php?title=Co-basis&oldid=17851