2 papers
math.OC2026
Hidden convexity of quadratic systems and its application to quadratic programming
Nguyen Quang Huy, Nguyen Huy Hung, Tran Van Nghi +2
In this paper, we present sufficient conditions ensuring that the sum of the image of quadratic functions and the nonnegative orthant is convex. The hidden convexity of the trust-r…
math.OC2025
Directional Subdifferentials at Infinity and Its Applications
Le Ngoc Kien, Nguyen Van Tuyen, Tran Van Nghi
This paper investigates the behavior of sets and functions at infinity by introducing new concepts, namely directional normal cones at infinity for unbounded sets, along with limit…