TY - BOOK AU - Singer Ivan TI - Duality for nonconvex approximation and optimization T2 - CMS books in mathematics; 24 SN - 0387283943 (hbd) U1 - B38, P6 TB PY - 2006/// CY - New York PB - Springer Science+Business Media Inc KW - Approximation theory KW - Convex functions KW - Convex sets KW - Duality theory-Mathematics KW - Mathematics N1 - Bibliographical references 329-345p.; Index 347-353p ER -