The complexity of subdifferentiation and
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Pierre Casevitz
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Article
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2002
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Elsevier Science
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English
β 200 KB
Let E be a separable Banach space with separable dual. We show that the operation of subdi erentiation and the inverse operation are Borel from the convex functions on E into the monotone operators on E (subspace of the closed sets of E Γ E \* ) for the E ros-Borel structures. We also prove that th