2 papers
math.OC2026
Federated Incremental Subgradient Method for Convex Bilevel Optimization Problems
Sudkobfa Boontawee, Mootta Prangprakhon, Nimit Nimana
In this letter, we consider a bilevel optimization problem in which the outer-level objective function is strongly convex, whereas the inner-level problem consists of a finite sum…
math.OC2025
Subgradient Splitting Methods for Nonsmooth Fractional Programming with Fixed-Point Constraints
Mootta Prangprakhon, Nimit Nimana
We consider a class of nonsmooth fractional programming problems with fixed-point constraints, where the numerator is convex and the denominator is concave. To solve this problem,…