An implicit canonical equation in Hilbert space
English version (Springer): Ukrainian Mathematical Journal 42 (1990), no. 3, pp 345-347.
Citation Example: Krein S. G., Utochkina E. O. An implicit canonical equation in Hilbert space // Ukr. Mat. Zh. - 1990. - 42, № 3. - pp. 388-390.
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