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Convergence of spline interpolation processes and conditionality of systems of equations for spline construction. / Volkov, Y. S.
в: Sbornik Mathematics, Том 210, № 4, 04.2019, стр. 550-564.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Convergence of spline interpolation processes and conditionality of systems of equations for spline construction
AU - Volkov, Y. S.
PY - 2019/4
Y1 - 2019/4
N2 - This study is a continuation of research on the convergence of interpolation processes with classical polynomial splines of odd degree. It is proved that the problem of good conditionality of a system of equations for interpolation spline construction via coefficients of the expansion of the kth derivative in B-splines is equivalent to the problem of convergence of the interpolation process for the Kth spline derivative in the class of functions with continuous Kth derivatives. It is established that for interpolation with splines of degree 2n - 1, the conditions that the projectors corresponding to the derivatives of orders k and 2n - 1 - k be bounded are equivalent. Bibliography: 26 titles.
AB - This study is a continuation of research on the convergence of interpolation processes with classical polynomial splines of odd degree. It is proved that the problem of good conditionality of a system of equations for interpolation spline construction via coefficients of the expansion of the kth derivative in B-splines is equivalent to the problem of convergence of the interpolation process for the Kth spline derivative in the class of functions with continuous Kth derivatives. It is established that for interpolation with splines of degree 2n - 1, the conditions that the projectors corresponding to the derivatives of orders k and 2n - 1 - k be bounded are equivalent. Bibliography: 26 titles.
KW - Conditionality
KW - Construction algorithms
KW - Convergence
KW - Interpolation
KW - Projector norm
KW - Splines
KW - construction algorithms
KW - convergence
KW - projector norm
KW - conditionality
KW - BAND MATRICES
KW - splines
KW - INVERSES
KW - interpolation
KW - NORM
UR - http://www.scopus.com/inward/record.url?scp=85071112315&partnerID=8YFLogxK
U2 - 10.1070/SM8964
DO - 10.1070/SM8964
M3 - Article
AN - SCOPUS:85071112315
VL - 210
SP - 550
EP - 564
JO - Sbornik Mathematics
JF - Sbornik Mathematics
SN - 1064-5616
IS - 4
ER -
ID: 21336475