Zobrazeno 1 - 10
of 1 487
pro vyhledávání: '"Fourier transform on finite groups"'
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
Publikováno v:
Engineering Applications of Noncommutative Harmonic Analysis ISBN: 9780429289385
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aee04c3464e164d17278d98a50a8460
https://doi.org/10.1201/9780429289385-11
https://doi.org/10.1201/9780429289385-11
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:
Taan S. ElAli
Publikováno v:
Continuous Signals and Systems with MATLAB® ISBN: 9781003088585
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb3adecbb2efacbcc946f92ed08c1703
https://doi.org/10.1201/9781003088585-4
https://doi.org/10.1201/9781003088585-4
Publikováno v:
Signal Processing. 145:1-11
Sampling theories associated with the fractional Fourier transform (FrFT) have blossomed in recent years. However, the majority of the existing sampling models in shift-invariant spaces are constructed using a single generator, which may be inefficie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6a870a57c79ea5e2ae29c00d8f14d89
https://doi.org/10.1016/j.sigpro.2017.11.009
https://doi.org/10.1016/j.sigpro.2017.11.009
Publikováno v:
Communications in Nonlinear Science and Numerical Simulation. 55:93-104
In this article, we formulate an efficient and accurate numerical method for approximations of the coupled Schrodinger–Boussinesq (SBq) system. The main features of our method are based on: (i) the applications of a time-splitting Fourier spectral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30693db7e75bbb4ece2533074222200
https://doi.org/10.1016/j.cnsns.2017.06.033
https://doi.org/10.1016/j.cnsns.2017.06.033
Autor:
Bangteng Xu, Yun Fan
Publikováno v:
Designs, Codes and Cryptography. 86:2091-2113
Let G be a finite nonabelian group. Bent functions on G are defined by the Fourier transforms at irreducible representations of G. We introduce a dual basis $${\widehat{G}}$$ , consisting of functions on G determined by its unitary irreducible repres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93b9b174e2b8dfdf8b4ca5ca94f4e866
https://doi.org/10.1007/s10623-017-0439-0
https://doi.org/10.1007/s10623-017-0439-0
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
Publikováno v:
Mathematical Notes. 102:480-491
We give the solution of the Turan, Fejer, Delsarte, Logan, and Bohman extremal problems for the Fourier transform on the hyperboloid ℍ d or Lobachevsky space. We apply the averaging function method over the sphere and the solution of these problems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38e9e0952c2489fc6ef5ae9585abbcac
https://doi.org/10.1134/s0001434617090206
https://doi.org/10.1134/s0001434617090206
Autor:
A. V. Razgulin, S. V. Sazonova
Publikováno v:
Computational Mathematics and Mathematical Physics. 57:1385-1403
A novel statement of the Fourier filtering problem based on the use of matrix Fourier filters instead of conventional multiplier filters is considered. The basic properties of the matrix Fourier filtering for the filters in the Hilbert–Schmidt clas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fbace42f5897615bba929dda789e2eb
https://doi.org/10.1134/s0965542517090123
https://doi.org/10.1134/s0965542517090123