Approximation numbers and approximation of the eigenvalues of integral operators
English version (Springer): Ukrainian Mathematical Journal 39 (1987), no. 2, pp 171-175.
Citation Example: Pereverzev S. V. Approximation numbers and approximation of the eigenvalues of integral operators // Ukr. Mat. Zh. - 1987. - 39, № 2. - pp. 204-209.
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