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Efthymios N. Karatzas
Efthymios N. Karatzas
Verified email at math.auth.gr
Title
Cited by
Cited by
Year
Projection-based reduced order models for a cut finite element method in parametrized domains
EN Karatzas, F Ballarin, G Rozza
Computers & Mathematics with Applications 79 (3), 833-851, 2020
402020
A reduced basis approach for PDEs on parametrized geometries based on the shifted boundary finite element method and application to a Stokes flow
EN Karatzas, G Stabile, L Nouveau, G Scovazzi, G Rozza
Computer Methods in Applied Mechanics and Engineering 347, 568-587, 2019
332019
A reduced order approach for the embedded shifted boundary FEM and a heat exchange system on parametrized geometries
EN Karatzas, G Stabile, N Atallah, G Scovazzi, G Rozza
IUTAM Symposium on Model Order Reduction of Coupled Systems, Stuttgart …, 2020
202020
A reduced-order shifted boundary method for parametrized incompressible Navier–Stokes equations
EN Karatzas, G Stabile, L Nouveau, G Scovazzi, G Rozza
Computer Methods in Applied Mechanics and Engineering 370, 113273, 2020
182020
Error estimates for discontinuous Galerkin time-stepping schemes for Robin boundary control problems constrained to parabolic PDEs
K Chrysafinos, EN Karatzas
SIAM Journal on Numerical Analysis 52 (6), 2837-2862, 2014
152014
SYMMETRIC ERROR ESTIMATES FOR DISCONTINUOUS GALERKIN APPROXIMATIONS FOR AN OPTIMAL CONTROL PROBLEM ASSOCIATED TO SEMILINEAR PARABOLIC PDE'S.
K Chrysafinos, EN Karatzas
Discrete & Continuous Dynamical Systems-Series B 17 (5), 2012
152012
A reduced order model for a stable embedded boundary parametrized Cahn–Hilliard phase-field system based on cut finite elements
EN Karatzas, G Rozza
Journal of Scientific Computing 89 (1), 9, 2021
112021
Symmetric error estimates for discontinuous Galerkin time-stepping schemes for optimal control problems constrained to evolutionary Stokes equations
K Chrysafinos, EN Karatzas
Computational Optimization and Applications 60, 719-751, 2015
92015
Embedded domain Reduced Basis Models for the shallow water hyperbolic equations with the Shifted Boundary Method
X Zeng, G Stabile, EN Karatzas, G Scovazzi, G Rozza
Computer Methods in Applied Mechanics and Engineering 398, 115143, 2022
72022
Discrete empirical interpolation and unfitted mesh FEMs: application in PDE-constrained optimization
G Katsouleas, EN Karatzas, F Travlopanos
Optimization 72 (6), 1609-1642, 2023
52023
Stability and error estimates of fully discrete schemes for the Brusselator system
K Chrysafinos, EN Karatzas, D Kostas
SIAM Journal on Numerical Analysis 57 (2), 828-853, 2019
52019
Random geometries for optimal control PDE problems based on fictitious domain FEMs and cut elements
A Aretaki, EN Karatzas
Journal of Computational and Applied Mathematics 412, 114286, 2022
42022
A Reduced Order Cut Finite Element method for geometrically parametrized steady and unsteady Navier–Stokes problems
EN Karatzas, M Nonino, F Ballarin, G Rozza
Computers & Mathematics with Applications 116, 140-160, 2022
42022
Equal higher order analysis of an unfitted discontinuous Galerkin method for Stokes flow systems
A Aretaki, EN Karatzas, G Katsouleas
Journal of Scientific Computing 91 (2), 48, 2022
22022
Cut finite element error estimates for a class of nonlinear elliptic PDEs
G Katsouleas, EN Karatzas, F Travlopanos
arXiv preprint arXiv:2003.06489, 2020
22020
Discontinuous Galerkin time-stepping schemes for Robin boundary control problems constrained to parabolic PDEs
K Chrysafinos, E Karatzas
IFAC Workshop on Control of Systems Governed by PDEs, 2013
22013
Boundary and distributed optimal control for a population dynamics PDE model with discontinuous in time Galerkin FEM schemes
EN Karatzas
Computers & Mathematics with Applications 165, 70-87, 2024
2024
hp-version analysis for arbitrarily shaped elements on the boundary discontinuous Galerkin method for Stokes systems
EN Karatzas
arXiv preprint arXiv:2301.12577, 2023
2023
Reduced Basis, Embedded Methods and Parametrized Levelset Geometry
EN Karatzas, G Stabile, F Ballarin, G Rozza
arXiv preprint arXiv:2301.12401, 2023
2023
Discrete empirical interpolation and unfitted mesh FEMs
G Katsouleas, E Karatzas, F Travlopanos
Optimization Journal, 2022
2022
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Articles 1–20