Geodesic
On the characterization of scaling functions on non-Archimedean fields
Ural mathematical journal, Tome 7 (2021) no. 1, pp. 3-15

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In real life application all signals are not obtained from uniform shifts; so there is a natural question regarding analysis and decompositions of these types of signals by a stable mathematical tool. This gap was filled by Gabardo and Nashed [11] by establishing a constructive algorithm based on the theory of spectral pairs for constructing non-uniform wavelet basis in $L^2(\mathbb R)$. In this setting, the associated translation set $\Lambda =\left\{ 0,r/N\right\}+2\,\mathbb Z$ is no longer a discrete subgroup of $\mathbb R$ but a spectrum associated with a certain one-dimensional spectral pair and the associated dilation is an even positive integer related to the given spectral pair. In this paper, we characterize the scaling function for non-uniform multiresolution analysis on local fields of positive characteristic (LFPC). Some properties of wavelet scaling function associated with non-uniform multiresolution analysis (NUMRA) on LFPC are also established.
Keywords: scaling function, local field, NUMRA.
Mots-clés : Fourier transform 
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Ishtaq Ahmed; Owias Ahmad; Neya Ahmad Sheikh. On the characterization of scaling functions on non-Archimedean fields. Ural mathematical journal, Tome 7 (2021) no. 1, pp. 3-15. http://geodesic.mathdoc.fr/item/UMJ_2021_7_1_a0/