Similar to リーマン・ルベーグの補題

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Plancherel theorem

Riesz–Thorin theorem

Harmonic analysis

Kakeya set

Radial function

Group ring

Oscillatory integral operator

Elias M. Stein

Spectral theory

Dirichlet kernel

Hardy–Littlewood maximal function

Haar measure

Orlicz space

Noncommutative harmonic analysis

Fourier integral operator

Poisson kernel

Pontryagin duality

Minakshisundaram–Pleijel zeta function

Riesz transform

Extreme value theorem

Sturm's theorem

Bipolar theorem

Hartman–Grobman theorem