The Equivalence of Several BasicTheorems for Subdi erentialsQiji
نویسنده
چکیده
Several diierent basic properties are used for developing a system of calculus for subdiierentials. They are a nonlocal fuzzy sum rule in 5, 25], a multidirectional mean value theorem in 7, 8], local fuzzy sum rules in 14, 15] and an extremal principle in 19, 21]. We show that all these basic results are equivalent and discuss some interesting consequences of this equivalence.
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تاریخ انتشار 2007