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- mathematics, the Plancherel theorem (sometimes called the Parseval–Plancherel identity) is a result in harmonic analysis, proven by Michel Plancherel in 1910....5 KB (655 words) - 05:24, 6 December 2023
- Michel Plancherel (French pronunciation: [miʃɛl plɑ̃ʃʁɛl]; 16 January 1885 – 4 March 1967) was a Swiss mathematician. He was born in Bussy (Canton of Fribourg...3 KB (213 words) - 22:36, 23 May 2024
- In mathematics, Plancherel measure is a measure defined on the set of irreducible unitary representations of a locally compact group G {\displaystyle G}...8 KB (1,168 words) - 18:50, 26 January 2024
- In mathematics, the Plancherel theorem for spherical functions is an important result in the representation theory of semisimple Lie groups, due in its...67 KB (11,769 words) - 07:11, 5 May 2024
- Large sieve (section Approximate Plancherel inequality){\displaystyle |f|_{2}={\sqrt {|S|}},} we get a contradiction with the Plancherel identity | f ^ | 2 = | f | 2 {\displaystyle |{\widehat {f}}|_{2}=|f|_{2}}...6 KB (863 words) - 20:33, 23 March 2024
- Cécile Plancherel (born 28 October 1970) is a Swiss snowboarder. She competed at the 1998 Winter Olympics, in giant slalom. Evans, Hilary; Gjerde, Arild;...1 KB (55 words) - 06:51, 25 May 2023
- The Plancherel–Rotach asymptotics are asymptotic results for orthogonal polynomials. They are named after the Swiss mathematicians Michel Plancherel and...4 KB (917 words) - 16:37, 10 August 2023
- topology. The analogue of the Plancherel theorem is abstractly given by identifying a measure on the unitary dual, the Plancherel measure, with respect to...4 KB (471 words) - 17:11, 17 March 2023
- {g}}(\xi )}}\,d\xi ,} where the bar denotes complex conjugation. The Plancherel theorem, which follows from the above, states that ‖ f ‖ L 2 2 = ∫ − ∞...177 KB (21,038 words) - 21:59, 30 May 2024
- physics, the most general form of this property is more properly called the Plancherel theorem. Suppose that A ( x ) {\displaystyle A(x)} and B ( x ) {\displaystyle...9 KB (1,799 words) - 15:47, 26 May 2024
- For functions f , g : G → C {\displaystyle f,g:G\to \mathbb {C} } , the Plancherel formula states ∑ a ∈ G f ( a − 1 ) g ( a ) = 1 | G | ∑ i d ϱ i Tr ( f...9 KB (1,396 words) - 16:18, 22 February 2024
- Fourier series (section Plancherel's theorem)A Fourier series (/ˈfʊrieɪ, -iər/) is an expansion of a periodic function into a sum of trigonometric functions. The Fourier series is an example of a...68 KB (10,430 words) - 16:21, 10 June 2024
- that their Hankel transforms Fν(k) and Gν(k) are well defined, then the Plancherel theorem states ∫ 0 ∞ f ( r ) g ( r ) r d r = ∫ 0 ∞ F ν ( k ) G ν ( k )...26 KB (4,200 words) - 16:21, 3 June 2024
- _{k=0}^{N-1}X_{k}Y_{k}^{*}} where the star denotes complex conjugation. The Plancherel theorem is a special case of Parseval's theorem and states: ∑ n = 0 N...68 KB (10,509 words) - 20:05, 7 June 2024
- \mathbb {R} } with α < c < β {\displaystyle \alpha <c<\beta } . Then the Plancherel theorem holds: ∫ − ∞ ∞ e − 2 c t | f ( t ) | 2 d t = 1 2 π ∫ − ∞ ∞ | F...18 KB (1,995 words) - 13:38, 29 May 2024
- operator between two principal series representations, that appears in the Plancherel measure for semisimple Lie groups. Harish-Chandra (1958a, 1958b) introduced...9 KB (1,225 words) - 18:41, 26 January 2024
- This dual object is suitable for formulating a Fourier transform and a Plancherel theorem for unimodular separable locally compact groups of type I and...12 KB (1,753 words) - 20:34, 24 January 2024
- π , π ] . {\displaystyle L^{2}[-\pi ,\pi ].} A similar result is the Plancherel theorem, which asserts that the integral of the square of the Fourier...5 KB (752 words) - 23:11, 15 December 2023
- necessarily isometric on L 2 {\displaystyle L^{2}} spaces. See below at Plancherel and L2 Fourier inversion theorems. The space of integrable functions on...39 KB (5,806 words) - 03:42, 8 May 2024
- H_{k}(x)} is the k {\displaystyle k} th Hermite polynomial. The poissonized Plancherel measure on integer partition (and therefore on Young diagramss) plays...7 KB (1,235 words) - 18:34, 3 March 2024