Dür, Mirjam - In: Mathematical Methods of Operations Research 57 (2003) 1, pp. 101-109
In a series of papers, Hiriart-Urruty proposed necessary and sufficient global optimality conditions for the so-called d.c. problem and the convex maximization problem. In this paper, we investigate the underlying local optimality conditions, which, in general, are necessary, but not sufficient...