On exact order estimates of <em class="a-plus-plus">N</em>-widths of classes of functions analytic in a simply connected domain

  • S. B. Vakarchuk Днепропетр. ун-т им. А. Нобеля

Abstract

In the spaces E q(Ω), 1 < q < ∞, introduced by Smirnov, we obtain exact order estimates of projective and spectral n-widths of the classes W r E p(Ω) and W r E p(Ω)Ф in the case where p and q are not equal. We also indicate extremal subspaces and operators for the approximative values under consideration.
Published
25.04.1996
How to Cite
VakarchukS. B. “On Exact Order Estimates of <em class="a-Plus-plus">N</Em&gt;-Widths of Classes of Functions Analytic in a Simply Connected Domain”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 48, no. 4, Apr. 1996, pp. 543-7, https://umj.imath.kiev.ua/index.php/umj/article/view/5318.
Section
Short communications