TY - BOOK AU - Singer Ivan TI - Duality for nonconvex approximation and optimization SN - 978-0-387-28394-4 U1 - 515.8 PY - 2006/// CY - New York PB - Springer-Verlag KW - Approximation theory KW - Convex domains KW - Convex functions KW - Convex sets KW - Convexity spaces KW - Duality theory (Mathematics) ER -