Riv.Mat.Univ.Parma (4) 16 (1990) - Parte II


La K-midpoint convessitā (concavitā) e la K-semicontinuitā inferiore (superiore) di una multifunzione

Pages 149-159
Received: 25 November 1989  

Abstract In this paper we obtain a sufficient condition for a K-midpoint*convex (k-midpoint*concave) multifunction on a point to be K-lower semicontinuous (k-upper semicontinuous) on the same point. These results contain or extended various results stated by K. Nikodem.