National and Kapodistrian University of Athens
- Zhang Neural Network (ZNN) construction for time-varying and time-invariant matrix inversion or generalized inversion.
Algebra, Numerical Linear Algebra, Computational methods for the Moore-Penrose generalized inverse. Applications in image restoration
and signal processing.
- Metaheuristic algorithms for optimal portfolio selection.
- Scientific computing and computational methods in ordered
vector spaces with applications in Mathematical Economics (Portfolio Insurance, Options Replication).
- Functional Analysis, Ordered
Spaces, Generalized Wedges (Ordered Cones), Ordered subspaces with the Riesz Decomposition Property.