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Strong uniqueness. (English) Zbl 1181.41003

Summary: This is a survey on the subject of strong uniqueness in approximation theory.

MSC:

41-02 Research exposition (monographs, survey articles) pertaining to approximations and expansions
41A52 Uniqueness of best approximation
41A50 Best approximation, Chebyshev systems
41A65 Abstract approximation theory (approximation in normed linear spaces and other abstract spaces)
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