Category:Functional analysis

A

• + Approximation theory (0)

B

• + Banach algebras (3)

I

• + Integral equations (1)

I cont.

• + Integral transforms (0)

M

• + Measure theory (5)

N

• + Nonlinear functional analysis (0)

O

• + Operator theory (7)

T

• + Topological vector spaces (2)
• + Topology of function spaces (1)

W

• + Wavelets (3)

• List of functional analysis topics

*

• Functional analysis

A

• Absorbing set
• Analytic Fredholm theorem
• Analytic semigroup
• Antiunitary
• Aronszajn-Smith theorem
• Associativity
• Aubin-Lions lemma

B

• Baire category theorem
• Baire set
• Baire space
• Banach limit
• Banach-Mazur theorem
• Banach–Alaoglu theorem
• Bernstein's inequality (mathematical analysis)
• Beta wavelet
• Beta-dual space
• Bochner space
• Bochner's theorem
• Bounded deformation
• Bounded mean oscillation
• Bounded set
• Bred vectors
• Bs space

C

• C space
• C0-semigroup
• CCR and CAR algebras
• Choquet integral
• Choquet theory
• Circular convolution
• Closed graph theorem
• Coercive function
• Colombeau algebra
• Commutativity
• Compact convergence
• Compactly embedded
• Complementarity theory
• Compression (functional analysis)
• Conjugate index
• Constructive quantum field theory
• Continuous functions on a compact Hausdorff space
• Continuous linear extension
• Continuous linear operator
• Continuous wavelet
• Continuously embedded
• Convolution
• Convolution power

D

• De Branges function
• Density matrix
• Derivative (generalizations)
• Direct integral
• Dirichlet algebra
• Discontinuous linear map
• Disk algebra
• Distribution (mathematics)

D cont.

• Dual pair
• Dual space
• Dvoretzky's theorem

E

• Eberlein–Šmulian theorem
• Eigenfunction
• Energetic space
• Extensions of symmetric operators

F

• F-space
• Fixed point theorems in infinite-dimensional spaces
• Free probability
• Functional determinant
• Functional square root

G

• Gelfand representation
• Gelfand–Naimark theorem
• Gelfand-Naimark-Segal construction
• Geometric quantization
• Goldstine theorem
• Gram–Schmidt process
• Grothendieck inequality
• Gårding's inequality

H

• Hahn–Banach theorem
• Hamburger moment problem
• Harmonic spectrum
• Hellinger–Toeplitz theorem
• Hille–Yosida theorem
• Hölder condition
• Hölder's inequality

I

• Invariant subspace problem

J

• James' theorem

K

• Kakutani fixed point theorem
• Kantorovich theorem
• Kernel (linear operator)

L

• Legendre wavelet
• Linear functional
• Lions-Lax-Milgram theorem
• List of Banach spaces
• List of operators
• Lumer-Phillips theorem

M

• M. Riesz extension theorem
• Marcinkiewicz interpolation theorem
• Mazur's lemma
• Measure of non-compactness
• Mercer's theorem
• Min-max theorem
• Minkowski functional
• Minlos' theorem
• Mollifier
• Monotonic function
• Multiplication operator
• Müntz–Szász theorem

N

• Negacyclic convolution
• Neumann series

O

• Open mapping theorem (functional analysis)
• Operator algebra
• Ordered vector space
• Orthogonal complement
• Orthogonal functions

O cont.

• Orthonormal basis
• Orthonormality

P

• Parseval's identity
• Partial trace
• Partially-defined operator
• Peetre theorem
• Perturbation theory
• Pettis' theorem
• Plancherel theorem
• Plancherel theorem for spherical functions
• Polar set
• Polarization identity
• Positive element
• Positive linear functional
• Predual
• Projection (linear algebra)
• Pseudo-differential operator

Q

• Quasicontraction semigroup
• Quotient of subspace theorem
• Quotient space (linear algebra)

R

• Riesz representation theorem
• Riesz sequence
• Riesz space
• Riesz's lemma
• Ryll-Nardzewski fixed point theorem

S

• Sazonov's theorem
• Schauder fixed point theorem
• Sequence space
• Sesquilinear form
• Shannon wavelet
• Singular value decomposition
• Spectral set
• Spectral theory of compact operators
• Spectrum continuation analysis
• State (functional analysis)
• Stone's theorem on one-parameter unitary groups
• Strongly positive bilinear form
• System of imprimitivity

T

• Tonelli's theorem (functional analysis)
• Trigonometric moment problem

U

• Uniform algebra
• Uniform boundedness principle
• Uniform norm
• Uniformly Cauchy sequence
• Unit sphere
• Unitary transformation
• User:Gmh5016
• User:Gmh5016/Sandbox

V

• Volterra series

W

• Wavelet series
• Weak derivative
• Weakly measurable function
• Weierstrass M-test
• Weight function

Z

• Zonal spherical function