Shi, Ziye; Jin, Qingwei Second order optimality conditions and reformulations for nonconvex quadratically constrained quadratic programming problems. (English) Zbl 1283.49021 J. Ind. Manag. Optim. 10, No. 3, 871-882 (2014). MSC: 49K21 49M37 49N15 90C20 90C26 PDFBibTeX XMLCite \textit{Z. Shi} and \textit{Q. Jin}, J. Ind. Manag. Optim. 10, No. 3, 871--882 (2014; Zbl 1283.49021) Full Text: DOI
Deng, Zhibin; Fang, Shu-Cherng; Jin, Qingwei; Xing, Wenxun Detecting copositivity of a symmetric matrix by an adaptive ellipsoid-based approximation scheme. (English) Zbl 1317.90229 Eur. J. Oper. Res. 229, No. 1, 21-28 (2013). MSC: 90C22 90C60 PDFBibTeX XMLCite \textit{Z. Deng} et al., Eur. J. Oper. Res. 229, No. 1, 21--28 (2013; Zbl 1317.90229) Full Text: DOI