Galerkin information, the hyperbolic cross, and the complexity of operator equations
English version (Springer): Ukrainian Mathematical Journal 43 (1991), no. 5, pp 593-601.
Citation Example: Makhkamov K. Sh., Pereverzev S. V. Galerkin information, the hyperbolic cross, and the complexity of operator equations // Ukr. Mat. Zh. - 1991. - 43, № 5. - pp. 639–648.
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