- Betty Shea, Mark Schmidt 0001. Greedy Newton: Newton's method with exact line search. Optimization Letters, 20(1):1-19, January 2026.
- Huynh van Ngai, Huu Tron Nguyen, Dao Ngoc Han. Metric perturbation of Milyutin-type regularity and application to cyclic fixed point theorems. Optimization Letters, 20(2):379-399, March 2026.
- Jianxun Liu. Structure of solutions to a class of multistage stochastic linear complementarity problems. Optimization Letters, 20(2):295-305, March 2026.
- Daniel Gourion. The maximal angle between 3 ˟ 3 copositive matrices. Optimization Letters, 20(3):595-609, April 2026.
- Müzeyyen Ertürk, Faik Gürsoy, Emirhan Hacioglu, Gradimir V. Milovanovic. A gradient projection algorithm based on the normal-S iterative algorithm: convergence analysis and machine learning application. Optimization Letters, 20(2):361-378, March 2026.
- Gustavo Angulo, Burak Kocuk, Diego Alejandro Morán Ramírez. Generator subadditive functions for mixed-integer programs. Optimization Letters, 20(1):89-108, January 2026.
- Nguyen Minh Tung, Mai Van Duy. Linear adjustable robust optimization problem: semidefinite programming reformulation, optimality conditions and duality. Optimization Letters, 20(3):641-669, April 2026.
- Francesco Mezzadri. Fractional absolute value equations. Optimization Letters, 20(2):451-471, March 2026.
- Luca Bertazzi, Bruce L. Golden, Shuhan Kou. Some worst-case results related to the asymmetric traveling salesman problem. Optimization Letters, 20(2):411-425, March 2026.
- Harry Oviedo. A worst-case complexity analysis for riemannian non-monotone line-search methods. Optimization Letters, 20(2):333-360, March 2026.