An incorporation of trust region methods on LexOpt algorithm for unconstrained optimization. - Christina D. Nikolakakou; Theodoula N. Grapsa; George S. Androulakis (Panhellenic Conference on Informatics, 2015)

A sequential approach for unconstrained optimization via a partitioning technique. - Christina D. Nikolakakou; Theodoula N. Grapsa; I. A. Nikas; George S. Androulakis (Int. J. Comput. Math., 2015)

The sign of the slope of the objective function on identifying binding constraints in LP Problems. - Dimitris G. Tsarmpopoulos; Christina D. Nikolakakou; George S. Androulakis (PCI, 2020)

Solving LP problems using the ranking of the ratio of constraints' coefficients. - Dimitris G. Tsarmpopoulos; Christina D. Nikolakakou; George S. Androulakis (PCI, 2021)

Guiding iterative optimisation methods to a predefined kind of optima for unconstrained optimisation problems. - Christina D. Nikolakakou; Athanasia N. Papanikolaou; Eirini I. Nikolopoulou; Theodoula N. Grapsa; George S. Androulakis (Int. J. Math. Model. Numer. Optimisation, 2021)

A combination of a Proximity technique and Weighted average for LP Problems. - Dimitris G. Tsarmpopoulos; Eirini I. Nikolopoulou; Christina D. Nikolakakou; George S. Androulakis (PCI, 2022)

Redundancy and delimitation of the Pareto front. - Christina D. Nikolakakou (Oper. Res., 2025)