Duality for Nonconvex Approximation and Optimization - Singer, Ivan.; SpringerLink (Online service) (New York, NY : Springer Science+Business Media, Inc., 2006)
Keywords: Convex functions; Convex sets; Duality theory (Mathematics); Approximation theory; Convex domains; Convexity spaces; Mathematics; Operator Theory; Functional Analysis; Optimization; Approximations and Expansions