TY - Acta mathematica scientia,Series A A1 - Xinyi Feng,Xiangkai Sun T1 - Characterizations of Farkas Lemmas for a Class of Fractional Optimization with DC Functions Y1 - 2021-06-26 JF - Acta mathematica scientia, Series A JO - Acta mathematica scientia,Series A SP - 827 EP - 836 VL - 41 IS - 3 UR - http://121.43.60.238/sxwlxbA N1 - ER -