Abstract
This paper deals with a regularity assumption for the mathematical programming problem in Banach spaces. The attractive feature of our constraint qualification is the fact that it can be considered as a condition on the active part only of the constraint, and that it is preserved under small perturbations. Moreover, we show that our condition is “almost” equivalent to the existence of a non-empty and weakly compact set of Lagrange multipliers. The main step in the proof of our results is a generalization of the open mapping theorem.
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Communicated by J. Stoer
The early parts of this article result from fruitful correspondence with S. Kurcyusz, who died tragically in 1978. This paper is dedicated to his memory.
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Zowe, J., Kurcyusz, S. Regularity and stability for the mathematical programming problem in Banach spaces. Appl Math Optim 5, 49–62 (1979). https://doi.org/10.1007/BF01442543
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DOI: https://doi.org/10.1007/BF01442543