TY - Acta mathematica scientia,Series A A1 - Jiaolang Wang,Donghui Fang T1 - Approximate Optimality Conditions and Mixed Type Duality for a Class of Non-Convex Optimization Problems Y1 - 2022-06-26 JF - Acta mathematica scientia, Series A JO - Acta mathematica scientia,Series A SP - 651 EP - 660 VL - 42 IS - 3 UR - http://121.43.60.238/sxwlxbA N1 - ER -