Hammond, Peter J. (contributor) - 2007
commodity space is the finite-dimensional Eu-
clidean space RG.3 The typical member of RG is the vector x = (xg)g∈G. Let
#G … each x∈RG will be denoted by bardblxbardbl :=
radicalBigsummationtext
g∈Gx2g.
Define the three inequalities greaterdblequal … denotes its closure, and intS its interior. Also,
let:
(1) pS := {px|x∈S} for any p∈RG;
(2) λS := {λx|x∈S} for any λ …