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2. Basis (linear algebra) - Wikipedia

   en.wikipedia.org/wiki/Basis_(linear_algebra)

   A projective basis is + points in general position, in a projective space of dimension n. A convex basis of a polytope is the set of the vertices of its convex hull. A cone basis [5] consists of one point by edge of a polygonal cone. See also a Hilbert basis (linear programming).

3. Basis function - Wikipedia

   en.wikipedia.org/wiki/Basis_function

   In mathematics, a basis function is an element of a particular basis for a function space. Every function in the function space can be represented as a linear combination of basis functions, just as every vector in a vector space can be represented as a linear combination of basis vectors .

4. Standard basis - Wikipedia

   en.wikipedia.org/wiki/Standard_basis

   Every vector a in three dimensions is a linear combination of the standard basis vectors i, j and k.. In mathematics, the standard basis (also called natural basis or canonical basis) of a coordinate vector space (such as or ) is the set of vectors, each of whose components are all zero, except one that equals 1. [1]

5. Canonical basis - Wikipedia

   en.wikipedia.org/wiki/Canonical_basis

   In mathematics, a canonical basis is a basis of an algebraic structure that is canonical in a sense that depends on the precise context: In a coordinate space , and more generally in a free module , it refers to the standard basis defined by the Kronecker delta .

6. Schauder basis - Wikipedia

   en.wikipedia.org/wiki/Schauder_basis

   The space K(ℓ 2) of compact operators on the Hilbert space ℓ 2 has a Schauder basis. For every x, y in ℓ 2, let x ⊗ y denote the rank one operator v ∈ ℓ 2 → <v, x > y. If {e n} n ≥ 1 is the standard orthonormal basis of ℓ 2, a basis for K(ℓ 2) is given by the sequence [17]

7. Dual basis - Wikipedia

   en.wikipedia.org/wiki/Dual_basis

   The association of a dual basis with a basis gives a map from the space of bases of V to the space of bases of V ∗, and this is also an isomorphism. For topological fields such as the real numbers, the space of duals is a topological space , and this gives a homeomorphism between the Stiefel manifolds of bases of these spaces.