Efthymios N. Karatzas

According to our database, Efthymios N. Karatzas authored at least 17 papers between 2014 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of five.

2024

Boundary and distributed optimal control for a population dynamics PDE model with discontinuous in time Galerkin FEM schemes.

Efthymios N. Karatzas

Comput. Math. Appl., 2024

2023

hp-version analysis for arbitrarily shaped elements on the boundary discontinuous Galerkin method for Stokes systems.

Efthymios N. Karatzas

CoRR, 2023

Reduced Basis, Embedded Methods and Parametrized Levelset Geometry.

Efthymios N. Karatzas, Giovanni Stabile, Francesco Ballarin, Gianluigi Rozza

CoRR, 2023

2022

Equal Higher Order Analysis of an Unfitted Discontinuous Galerkin Method for Stokes Flow Systems.

Aikaterini Aretaki, Efthymios N. Karatzas, Georgios Katsouleas

J. Sci. Comput., 2022

Random geometries for optimal control PDE problems based on fictitious domain FEMs and cut elements.

Aikaterini Aretaki, Efthymios N. Karatzas

J. Comput. Appl. Math., 2022

Embedded domain Reduced Basis Models for the shallow water hyperbolic equations with the Shifted Boundary Method.

Xianyi Zeng, Giovanni Stabile, Efthymios N. Karatzas, Guglielmo Scovazzi, Gianluigi Rozza

CoRR, 2022

A Reduced Order Cut Finite Element method for geometrically parametrized steady and unsteady Navier-Stokes problems.

Efthymios N. Karatzas, Monica Nonino, Francesco Ballarin, Gianluigi Rozza

Comput. Math. Appl., 2022

2021

A Reduced Order Model for a Stable Embedded Boundary Parametrized Cahn-Hilliard Phase-Field System Based on Cut Finite Elements.

Efthymios N. Karatzas, Gianluigi Rozza

J. Sci. Comput., 2021

2020

Discrete Empirical Interpolation and unfitted mesh FEMs: application in PDE-constrained optimization.

Georgios Katsouleas, Efthymios N. Karatzas, Fotios Travlopanos

CoRR, 2020

A Reduced Order Cut Finite Element method for geometrically parameterized steady and unsteady Navier-Stokes problems.

Efthymios N. Karatzas, Monica Nonino, Francesco Ballarin, Gianluigi Rozza

CoRR, 2020

Cut finite element error estimates for a class of nonlinear elliptic PDEs.

Georgios Katsouleas, Efthymios N. Karatzas, Fotios Travlopanos

CoRR, 2020

Random geometries and Quasi Monte Carlo methods for optimal control PDE problems based on fictitious domain FEMS and cut elements.

Aikaterini Aretaki, Efthymios N. Karatzas

CoRR, 2020

Projection-based reduced order models for a cut finite element method in parametrized domains.

Efthymios N. Karatzas, Francesco Ballarin, Gianluigi Rozza

Comput. Math. Appl., 2020

2019

Stability and Error Estimates of Fully Discrete Schemes for the Brusselator System.

Konstantinos Chrysafinos, Efthymios N. Karatzas, Dimitrios Kostas

SIAM J. Numer. Anal., 2019

A Reduced-Order Shifted Boundary Method for Parametrized incompressible Navier-Stokes equations.

Efthymios N. Karatzas, Giovanni Stabile, Léo Nouveau, Guglielmo Scovazzi, Gianluigi Rozza

CoRR, 2019

2015

Symmetric error estimates for discontinuous Galerkin time-stepping schemes for optimal control problems constrained to evolutionary Stokes equations.

Konstantinos Chrysafinos, Efthimios N. Karatzas

Comput. Optim. Appl., 2015

2014

Error Estimates for Discontinuous Galerkin Time-Stepping Schemes for Robin Boundary Control Problems Constrained to Parabolic PDEs.

Konstantinos Chrysafinos, Efthimios N. Karatzas

SIAM J. Numer. Anal., 2014