Sparse PSD approximation of the PSD cone. - Grigoriy Blekherman; Santanu S. Dey; Marco Molinaro 001; Shengding Sun (Math. Program., 2022)

Hyperbolic Relaxation of $k$-Locally Positive Semidefinite Matrices. - Grigoriy Blekherman; Santanu S. Dey; Kevin Shu; Shengding Sun (SIAM J. Optim., 2022)

Some global relaxation methods for quadratic and semidefinite programming. - Shengding Sun (2023)

Aggregations of Quadratic Inequalities and Hidden Hyperplane Convexity. - Grigoriy Blekherman; Santanu S. Dey; Shengding Sun (SIAM J. Optim., 2024)

Hardness and approximation of submodular minimum linear ordering problems. - Majid Farhadi; Swati Gupta 001; Shengding Sun; Prasad Tetali; Michael C. Wigal (Math. Program., 2024)