Zobrazeno 1 - 10
of 2 176
pro vyhledávání: '"Fourier inversion theorem"'
Autor:
François Rouvière
Publikováno v:
The Journal of Geometric Analysis. 31:6365-6385
We extend to a large class of noncompact harmonic manifolds the inversion formulas for the Radon transform on horospheres in hyperbolic spaces or Damek–Ricci spaces. Horospheres are defined here as level hypersurfaces of Busemann functions. The pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff9b544cc67fac01abc7b1f9477ac5e1
https://doi.org/10.1007/s12220-020-00535-7
https://doi.org/10.1007/s12220-020-00535-7
Autor:
Mark J. Burge, Wilhelm Burger
Publikováno v:
Texts in Computer Science ISBN: 9783031057434
Texts in Computer Science ISBN: 9781447166832
Principles of Digital Image Processing ISBN: 9781848001947
Texts in Computer Science ISBN: 9781447166832
Principles of Digital Image Processing ISBN: 9781848001947
The Fourier transform is defined not only for 1D signals but for functions of arbitrary dimension. Thus, 2D images are nothing special from a mathematical point of view.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26eed0d58b6190695740bf967525eefd
https://doi.org/10.1007/978-3-031-05744-1_19
https://doi.org/10.1007/978-3-031-05744-1_19
Autor:
Grosser, Siegfried, Moskowitz, Martin
Publikováno v:
Transactions of the American Mathematical Society, 1971 May 01. 156, 419-454.
Externí odkaz:
https://www.jstor.org/stable/1995621
Publikováno v:
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Publicacions Matemàtiques; Vol. 58, Núm. 1 (2014); p. 47-63
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Publicacions Matemàtiques; Vol. 58, Núm. 1 (2014); p. 47-63
A recent theorem of S. Alesker, S. Artstein-Avidan and V. Milman characterises the Fourier transform on R-n as essentially the only transform on the space of tempered distributions which interchanges convolutions and pointwise products. In this note
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ade0693412c7b5050ea08985b23acda
http://hdl.handle.net/2072/400955
http://hdl.handle.net/2072/400955
Autor:
John J. Benedetto
Harmonic analysis plays an essential role in understanding a host of engineering, mathematical, and scientific ideas. In Harmonic Analysis and Applications, the analysis and synthesis of functions in terms of harmonics is presented in such a way as t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47b0a1d5421cafcd421d3bdd4bc946af
https://doi.org/10.1201/9781003068839
https://doi.org/10.1201/9781003068839
Autor:
Hans G. Feichtinger
Publikováno v:
Axioms; Volume 9; Issue 1; Pages: 25
Axioms, Vol 9, Iss 1, p 25 (2020)
Axioms, Vol 9, Iss 1, p 25 (2020)
The Banach Gelfand Triple ( S 0 , L 2 , S 0 ′ ) ( R d ) consists of S 0 ( R d ) , ∥ · ∥ S 0 , a very specific Segal algebra as algebra of test functions, the Hilbert space L 2 ( R d ) , ∥ · ∥ 2 and the dual space S 0 ′ ( R d ) , whose e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04353f66865f06230db9cec5031859b9
Autor:
David E. Grow, Donnie Myers
Publikováno v:
Journal of Mathematical Analysis and Applications. 458:730-741
We demonstrate that the Fourier partial sums of a Lipschitz continuous function on the two-dimensional special unitary group converge uniformly to the function.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34a710e2f7f701c6ff30463d65b8ac45
https://doi.org/10.1016/j.jmaa.2017.09.034
https://doi.org/10.1016/j.jmaa.2017.09.034
Autor:
Sergey S. Platonov
Publikováno v:
p-Adic Numbers, Ultrametric Analysis and Applications. 9:306-313
In this paper for functions on locally compact Vilenkin groups, we prove an analogue of one classical Titchmarsh theorem on the image under the Fourier transform of a set of functions satisfying the Lipschitz condition in L2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f51d9c79d3e85a1ce01925c156257a45
https://doi.org/10.1134/s2070046617040057
https://doi.org/10.1134/s2070046617040057
Publikováno v:
Transactions of the American Mathematical Society. 370:1629-1659
We study convergence almost everywhere of multiple trigonometric Fourier series over cubes defined on the d d -dimensional torus T d \mathbb {T}^d . We provide a new approach which allows us to prove the novel interpolation estimates for the Carleson
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7684e28b13491af5124c3b697b4c69f
https://doi.org/10.1090/tran/7172
https://doi.org/10.1090/tran/7172
Autor:
Mohamed Elouafi
Publikováno v:
Linear and Multilinear Algebra. 66:1767-1782
In this paper, we give an explicit formula for the element of the inverse where is a band Toeplitz matrix with left bandwidth s and right bandwidth r. The formula involves determinants, , whose elements are the discrete Fourier transform of where f i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::976cb6e2846354cb44cb10356f5fd6d9
https://doi.org/10.1080/03081087.2017.1373729
https://doi.org/10.1080/03081087.2017.1373729