Hilbert space


A Hilbert spaceMathworldPlanetmath is an inner product spaceMathworldPlanetmath which is http://planetmath.org/node/603completePlanetmathPlanetmath under the metric.

In particular, a Hilbert space is a Banach spaceMathworldPlanetmath in the norm by the inner productMathworldPlanetmath, since the norm and the inner product both induce the same metric. Any finite-dimensional inner product space is a Hilbert space, but it is worth mentioning that some authors require the space to be infinite dimensional for it to be called a Hilbert space.

Title Hilbert space
Canonical name HilbertSpace
Date of creation 2013-03-22 12:19:06
Last modified on 2013-03-22 12:19:06
Owner mathcam (2727)
Last modified by mathcam (2727)
Numerical id 11
Author mathcam (2727)
Entry type Definition
Classification msc 46C05
Related topic InnerProductSpace
Related topic HilbertModule
Related topic QuadraticFunctionAssociatedWithALinearFunctional
Related topic VectorNorm
Related topic RieszSequence
Related topic VonNeumannAlgebra
Related topic HilbertSpacesAndQuantumGroupsVonNeumannAlgebras
Related topic L2SpacesAreHilbertSpaces
Related topic QuantumGroupsAndVonNeumannAlgebras
Related topic HAlgebra
Related topic Ries