On the solution existence and stability of quadratically constrained nonconvex quadratic programs. - Nguyen Nang Tam; Tran Van Nghi (Optim. Lett., 2018)

A Frank-Wolfe-Type Theorem for Cubic Programs and Solvability for Quadratic Variational Inequalities. - Tran Van Nghi; Nguyen Nang Tam (J. Optim. Theory Appl., 2020)

On the solution existence to convex polynomial programs and its applications. - Nguyen Nang Tam; Tran Van Nghi (Optim. Lett., 2021)

A Non-polyhedral extension of the Frank-Wolfe theorem to cubic optimization. - Tran Van Nghi; Nguyen Nang Tam (Optim. Lett., 2025)