Second-order Sufficient Conditions for a Nonsmooth Optimization without Constraints
HE Wen-ge1,WANG Cai-ling2,WU Ke-yi3
(1.Jilin Vocational College of Industry and Technology,Jilin132013,Jilin Province,China;2.College of Mathematics,Jilin University,Changchun130012,China;3.Nanping Normal College,Nanping353000,Fujian Province,China)