Some orthogonalities in approximation theory. / Zhuk, A.S.; Zhuk, V.V.
In: Journal of Mathematical Sciences, Vol. 133, No. 6, 2006, p. 1652 – 1674.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Some orthogonalities in approximation theory
AU - Zhuk, A.S.
AU - Zhuk, V.V.
PY - 2006
Y1 - 2006
N2 - In approximation theory, a number of quantities are interrelated via orthogonal transformations. The revelation of these orthogonalities allows one to obtain useful relations and, in particular, to use known theorems on the Fourier coefficients. The paper considers this approach in application to the Fourier transforms of finite functions, to the best L2-approximations, and to trigonometric polynomials with coefficients in a vector space.
AB - In approximation theory, a number of quantities are interrelated via orthogonal transformations. The revelation of these orthogonalities allows one to obtain useful relations and, in particular, to use known theorems on the Fourier coefficients. The paper considers this approach in application to the Fourier transforms of finite functions, to the best L2-approximations, and to trigonometric polynomials with coefficients in a vector space.
U2 - 10.1007/s10958-006-0078-x
DO - 10.1007/s10958-006-0078-x
M3 - Article
VL - 133
SP - 1652
EP - 1674
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
IS - 6
ER -
ID: 5239100