%0 Journal Article %A Ruiz Garzón, Gabriel %A Osuna Gómez, Rafaela %A Rufián Lizana, Antonio %A Beato-Moreno, Antonio %T Second-order optimality conditions for interval-valued functions %D 2023 %@ 1029-242X %U http://hdl.handle.net/10498/29701 %X This work is included in the search of optimality conditions for solutions to the scalar interval optimization problem, both constrained and unconstrained, by means of second-order optimality conditions. As it is known, these conditions allow us to reject some candidates to minima that arise from the first-order conditions. We will define new concepts such as second-order gH-derivative for interval-valued functions, 2-critical points, and 2-KKT-critical points. We obtain and present new types of interval-valued functions, such as 2-pseudoinvex, characterized by the property that all their second-order stationary points are global minima. We extend the optimality criteria to the semi-infinite programming problem and obtain duality theorems. These results represent an improvement in the treatment of optimization problems with interval-valued functions. %K Optimization problem %K Generalized convexity %K Second-order optimality %~ Universidad de Cádiz