Estimates for the convergence of the penalty method for second-order variational elliptic inequalities
English version (Springer): Ukrainian Mathematical Journal 39 (1987), no. 2, pp 203-208.
Citation Example: Gavrilyuk I. P., Sazhenyuk V. S., Voitsekhovskii S. A. Estimates for the convergence of the penalty method for second-order variational elliptic inequalities // Ukr. Mat. Zh. - 1987. - 39, № 2. - pp. 245–250.
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