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The Penalty Method for Variational Inequalities with Nonsmooth Unbounded Operators in Banach Space

Ya. I. Alber

funct-anarXiv:funct-an/9312005

Abstract

The existence of a solution, convergence and stability of the penalty method for variational inequalities with nonsmooth unbounded uniformly and properly monotone operators in Banach spase B are investigated. All the objects of the inequality - the operator A, "the right-hand part" f and the set of constrains Ω - are to be perturbed. The stability theorems are formulated in terms of geometric characteristics of the spaces B and B*. The results of this paper are continuity and generalization of the Lions' ones, published earlier in l. They are new even in Hilbert spaces.

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