Remarks on Surjectivity of Gradient Operators

Chiappinelli, R; Edmunds, DE

Chiappinelli, R (corresponding author), Univ Siena, Dipartimento Ingn Informaz & Sci Matemat, I-53100 Siena, Italy.

MATHEMATICS, 2020; 8 (9):

Abstract

Let X be a real Banach space with dual X* and suppose that F: X -> X*. We give a characterisation of the property that F is locally proper and esta......

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