Inversion of linear operators perturbed on the spectrum
English version (Springer): Ukrainian Mathematical Journal 23 (1971), no. 2, pp 143-150.
Citation Example: Plotkin Ya. D., Turbin A. F. Inversion of linear operators perturbed on the spectrum // Ukr. Mat. Zh. - 1971. - 23, № 2. - pp. 168–176.
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