Autori:
Crespi, Giovanni Paolo ![](http://www.bncf.firenze.sbn.it/img/logo-bncf.jpg)
,
Rocca, Matteo ![](http://www.bncf.firenze.sbn.it/img/logo-bncf.jpg)
,
Ginchev, Ivan ![](http://www.bncf.firenze.sbn.it/img/logo-bncf.jpg)
Titolo:
Variational inequalities in vector optimizationPeriodico:
Università degli Studi dell'Insubria. Dipartimento di Economia. Quaderni di ricercaAnno:
2004 - Fascicolo:
31 - Pagina iniziale:
1 - Pagina finale:
16In this paper we investigate the links among generalized scalar variational inequalities of differential type, vector variational inequalities and vector optimization problems. The considered scalar variational inequalities are obtained through a nonlinear scalarization by means of the so called ”oriented distance” function.
In the case of Stampacchia-type variational inequalities, the solutions of the proposed ones coincide with the solutions of the vector variational inequalities introduced by Giannessi. For Minty-type variational inequalities, analogous coincidence happens under convexity hypotheses. Furthermore, the considered variational inequalities reveal useful in filling a gap between scalar and
vector variational inequalities. Namely, in the scalar case Minty variational
inequalities of differential type represent a sufficient optimality condition without
additional assumptions, while in the vector case the convexity hypothesis was needed. Moreover it is shown that vector functions admitting a solution of the proposed Minty variational inequality enjoy some well posedness properties, analogously to the scalar case.
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