Efthymios N. Karatzas

18 papers Journal 18
YearRankTypeTitle / Venue / Authors
2024 J jnl
Boundary and distributed optimal control for a population dynamics PDE model with discontinuous in time Galerkin FEM schemes.
Comput. Math. Appl.
Efthymios N. Karatzas
2024 J jnl
Boundary and distributed optimal control for a population dynamics PDE model with discontinuous in time Galerkin FEM schemes.
CoRR
Efthymios N. Karatzas
2023 J jnl
Reduced Basis, Embedded Methods and Parametrized Levelset Geometry.
CoRR
Efthymios N. Karatzas, Giovanni Stabile, Francesco Ballarin, Gianluigi Rozza
2023 J jnl
hp-version analysis for arbitrarily shaped elements on the boundary discontinuous Galerkin method for Stokes systems.
CoRR
Efthymios N. Karatzas
2022 J jnl
A Reduced Order Cut Finite Element method for geometrically parametrized steady and unsteady Navier-Stokes problems.
Comput. Math. Appl.
Efthymios N. Karatzas, Monica Nonino, Francesco Ballarin, Gianluigi Rozza
2022 J jnl
Embedded domain Reduced Basis Models for the shallow water hyperbolic equations with the Shifted Boundary Method.
CoRR
Xianyi Zeng, Giovanni Stabile, Efthymios N. Karatzas, Guglielmo Scovazzi, Gianluigi Rozza
2022 J jnl
Equal Higher Order Analysis of an Unfitted Discontinuous Galerkin Method for Stokes Flow Systems.
J. Sci. Comput.
Aikaterini Aretaki, Efthymios N. Karatzas, Georgios Katsouleas
2022 J jnl
Random geometries for optimal control PDE problems based on fictitious domain FEMs and cut elements.
J. Comput. Appl. Math.
Aikaterini Aretaki, Efthymios N. Karatzas
2021 J jnl
A Reduced Order Model for a Stable Embedded Boundary Parametrized Cahn-Hilliard Phase-Field System Based on Cut Finite Elements.
J. Sci. Comput.
Efthymios N. Karatzas, Gianluigi Rozza
2020 J jnl
A Reduced Order Cut Finite Element method for geometrically parameterized steady and unsteady Navier-Stokes problems.
CoRR
Efthymios N. Karatzas, Monica Nonino, Francesco Ballarin, Gianluigi Rozza
2020 J jnl
A Reduced Order Model for a stable embedded boundary parametrized Cahn-Hilliard phase-field system based on cut finite elements.
CoRR
Efthymios N. Karatzas, Gianluigi Rozza
2020 J jnl
Cut finite element error estimates for a class of nonlinear elliptic PDEs.
CoRR
Georgios Katsouleas, Efthymios N. Karatzas, Fotios Travlopanos
2020 J jnl
Discrete Empirical Interpolation and unfitted mesh FEMs: application in PDE-constrained optimization.
CoRR
Georgios Katsouleas, Efthymios N. Karatzas, Fotios Travlopanos
2020 J jnl
Equal higher order analysis of an unfitted discontinuous Galerkin method for Stokes flow systems.
CoRR
Georgios Katsouleas, Efthymios N. Karatzas, Aikaterini Aretaki
2020 J jnl
Projection-based reduced order models for a cut finite element method in parametrized domains.
Comput. Math. Appl.
Efthymios N. Karatzas, Francesco Ballarin, Gianluigi Rozza
2020 J jnl
Random geometries and Quasi Monte Carlo methods for optimal control PDE problems based on fictitious domain FEMS and cut elements.
CoRR
Aikaterini Aretaki, Efthymios N. Karatzas
2019 J jnl
A Reduced-Order Shifted Boundary Method for Parametrized incompressible Navier-Stokes equations.
CoRR
Efthymios N. Karatzas, Giovanni Stabile, Léo Nouveau, Guglielmo Scovazzi, Gianluigi Rozza
2019 J jnl
Stability and Error Estimates of Fully Discrete Schemes for the Brusselator System.
SIAM J. Numer. Anal.
Konstantinos Chrysafinos, Efthymios N. Karatzas, Dimitrios Kostas