
doi: 10.1007/bf01097242
In the current article the order of the Kolmogorov n-diameters of compacta, determined by the operatorsLy =p (x)dy/dx +q (x)y, Ly = [−d2/dx2 +q (x) d/dx]r y in L2[0, 1] with a bound on the order of the error is studied and asymptotic formulas for dn as a function of p(x), q(x), and r are derived.
Abstract approximation theory (approximation in normed linear spaces and other abstract spaces)
Abstract approximation theory (approximation in normed linear spaces and other abstract spaces)
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