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    Remarks on a generalization of Dini implicit function theorem

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    Department of Mathematics, University of Pis

    On the image regularity conditions

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    In this paper we continue the analysis of the image regularity condition (IRC) as introduced in a previous paper where we have proved that IRC implies the existence of generalized Lagrange-John multipliers with first component equal to 11. The term generalized is connected with the fact that the separation (in the image space) is not necessarily linear (when we have classic Lagrange-John multipliers), but it can be also not linear. Here, we prove that the IRC guarantees, also in the nondifferentiable case, the fact that 00 is a solution of the first-order homogeneized (linearized) problem obtained by means of the Dini-Hadamard derivatives
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