Fourier series

E482288

A Fourier series is a way of representing a periodic function as an infinite sum of sines and cosines with appropriately chosen coefficients.

All labels observed (6)

How this entity was disambiguated

Statements (51)

Predicate Object
instanceOf mathematical concept ⓘ
representation of periodic functions ⓘ
series expansion ⓘ
appliesTo piecewise smooth functions ⓘ
square-integrable periodic functions ⓘ
assumesProperty periodicity of function ⓘ
basisProperty orthogonality of sines and cosines ⓘ
convergesInSense L2 norm ⓘ
mean square ⓘ
pointwise almost everywhere ⓘ
convergesUnderCondition Dirichlet conditions ⓘ
expandsInDomain interval [0,2π] ⓘ
interval [−π,π] ⓘ
field Fourier analysis ⓘ
harmonic analysis ⓘ
mathematical analysis ⓘ
signal processing ⓘ
generalizesTo Fourier series on groups ⓘ
Fourier transform ⓘ
discrete-time Fourier series ⓘ
hasComponent Fourier coefficients ⓘ
Fourier cosine series ⓘ
linked to: Fourier series

Fourier sine series ⓘ
linked to: Fourier series

complex Fourier series ⓘ
hasFormulaType complex Fourier series ⓘ
real Fourier series ⓘ
introducedBy Joseph Fourier ⓘ
introducedInWork Théorie analytique de la chaleur ⓘ
introducedInYear 1822 ⓘ
namedAfter Joseph Fourier ⓘ
relatedConcept Fourier coefficients ⓘ
Gibbs phenomenon ⓘ
Hilbert space ⓘ
linked to: Hilbert spaces

Parseval's identity ⓘ
Plancherel theorem ⓘ
orthogonal functions ⓘ
trigonometric polynomials ⓘ
represents periodic function ⓘ
usedFor acoustics ⓘ
filter design ⓘ
heat equation ⓘ
image processing ⓘ
quantum mechanics ⓘ
signal decomposition ⓘ
solving partial differential equations ⓘ
spectral analysis ⓘ
vibration analysis ⓘ
wave equation ⓘ
usesBasisFunctions complex exponentials ⓘ
cosine functions ⓘ
sine functions ⓘ

How these facts were elicited

Referenced by (31)

Full triples — surface form annotated when it differs from this entity's canonical label.

Weierstrass M-test → relatedTo → Fourier series ⓘ
Laplace equation → solutionMethod → Fourier series ⓘ
Arnaud Denjoy → studied → Fourier series ⓘ
Fourier inversion theorem → isRelatedTo → Fourier series ⓘ
Dirichlet conditions → appliesTo → Fourier series ⓘ
Poisson summation formula → usedIn → Fourier series expansions ⓘ
linked to: Fourier series
Poisson summation formula → relatedTo → Fourier series ⓘ
Riesz–Fischer theorem → relatesConcept → Fourier series ⓘ
Antoni Zygmund → notableWork → Trigonometric Series ⓘ
linked to: Fourier series
Cesàro summation → usedIn → Fourier series ⓘ
Abel summation → usedIn → Fourier series theory ⓘ
linked to: Fourier series
Tauberian theorems → appliesTo → Fourier series ⓘ
Szegő limit theorem → usesConcept → Fourier series ⓘ
Hardy space → relatedConcept → Fourier series ⓘ
Dirichlet kernel → usedIn → Fourier series ⓘ
Dirichlet test → relatedTo → Fourier series ⓘ
Fourier series → hasComponent → Fourier sine series ⓘ
linked to: Fourier series
Fourier series → hasComponent → Fourier cosine series ⓘ
linked to: Fourier series
Partial (acoustics) → relatedTo → Fourier series ⓘ
Poisson kernel → relatedTo → Fourier series ⓘ
Poisson integral → relatedTo → Fourier series ⓘ
Fourier transform → hasVariant → Fourier series ⓘ
Parseval's theorem → relatesConcept → Fourier series ⓘ
Advanced Calculus → coversTopic → Fourier series ⓘ
Signals and Systems → topic → Fourier series ⓘ
subject linked to: "Signals and Systems"
Pontryagin duality → usedIn → Fourier series ⓘ
Bessel inequality → usedIn → Fourier series theory ⓘ
linked to: Fourier series
Lennart Carleson → influenced → Fourier series theory ⓘ
linked to: Fourier series