Belik, Ivan; Jörnsten, Kurt - Institutt for foretaksøkonomi, Norges Handelshøyskole … - 2014
Recently Beltrán-Royo, Vial & Alonso-Ayuso (2012) presented a semi-Lagrangean relaxation for the classical p … relaxation approach, were quite impressive. In this paper we use a semi-Lagrangean relaxation to obtain an efficient solution … limited number of values, making the search for the optimal multiplier easy. Since the semi-Lagrangean relaxation closes the …