We consider a fairly general minimization problem in convex vector opt
imization. We define and study its dual and obtain as special cases, m
any existing results on the matter. Isermann's main duality result in
the linear case will be improved. For working tools, we generalize sev
eral results used in convex scalar optimization to the vector case. On
the way, we show that a result on duality and alternative in multiobj
ective optimization needs not satisfy the hypothesis of the domination
property to hold.