Geodesic
Polynomials orthogonal in the Sobolev sense, generated by Chebyshev polynomials orthogornal on a mesh
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (2017), pp. 67-79

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We consider the problem of constructing polynomials, orthogonal in Sobolev sense on the finite uniform mesh and associated with classical Chebyshev polynomials of discrete variable. We have found an explicit expression of these polynomials by classical Chebyshev polynomials. Also we have obtained an expansion of new polynomials by generalized powers of Newton type. We obtain expressions for the deviation of a discrete function and its finite differences from respectively partial sums of its Fourier series on the new system of polynomials and their finite differences.
Mots-clés : polynomials orthogonal in Sobolev sence
Keywords: Chebyshev polynomials orthogonal on the mesh, approximation of discrete functions, mixed series of Chebyshev polynomials orthogonal on a uniform mesh. 
@article{IVM_2017_8_a6,
     author = {I. I. Sharapudinov and T. I. Sharapudinov},
     title = {Polynomials orthogonal in the {Sobolev} sense, generated by {Chebyshev} polynomials orthogornal on a mesh},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {67--79},
     publisher = {mathdoc},
     number = {8},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2017_8_a6/}
}
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I. I. Sharapudinov; T. I. Sharapudinov. Polynomials orthogonal in the Sobolev sense, generated by Chebyshev polynomials orthogornal on a mesh. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (2017), pp. 67-79. http://geodesic.mathdoc.fr/item/IVM_2017_8_a6/