Geodesic
Special wavelets based on Chebyshev polynomials of the second kind and their approximative properties
Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 16 (2016) no. 1, pp. 34-41

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The system of wavelets and scalar functions based on Chebyshev polynomials of the second kind and their zeros is considered. With the help of them we construct a complete orthonormal system of functions. A certain disadvantage is shown in approximation properties of partial sums of the corresponding wavelet series, related to the properties of Chebyshev polynomials themselves and meaning a significant decrease of the rate of their convergence to the original function at the endpoints of orthogonality segment. As an alternative, we propose a modification of Chebyshev wavelet series of the second kind by analogy to the special polynomial series with the property of adhesion. These new special wavelet series is proved to be deprived of the mentioned disadvantage and to have better approximative properties. 
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     author = {M. S. Sultanakhmedov},
     title = {Special wavelets based on {Chebyshev} polynomials of the second kind and their approximative properties},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
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M. S. Sultanakhmedov. Special wavelets based on Chebyshev polynomials of the second kind and their approximative properties. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 16 (2016) no. 1, pp. 34-41. http://geodesic.mathdoc.fr/item/ISU_2016_16_1_a3/