5 citations · 10 across the 17 of their papers we have counts for
23 papers
Interface Conditions for Wave Propagation Through a Time-varying Metasurface
Vishnu Raveendran, Barbara Verfürth
We study wave propagation through a time-modulated thin heterogeneous layer. The layer is assumed to have a thickness of order $\es\ll 1$ and its material properties exhibit rapid…
Optimization-Based Identification of Effective Coefficients for Wave Equations in Spatio-Temporal Metamaterials
Christian Döding, Vishnu Raveendran, Barbara Verfürth
We study the identification of effective coefficients for wave equations in heterogeneous media. Such equations arise in the modeling of spatio-temporal metamaterials, where the un…
Adaptive Iterative Numerical Homogenization for Quasilinear Nonmonotone Elliptic PDE
Maher Khrais, Barbara Verfürth
We propose and analyze an adaptive iterative numerical homogenization method to approximate the solution of a class of quasilinear nonmonotone elliptic problems that is of multisca…
Subspace decomposition with defect diffusion coefficient
Dilini Kolombage, Axel Målqvist, Barbara Verfürth
Elliptic diffusion problems with multiscale heterogeneous coefficients lead to poorly conditioned discrete systems and therefore require effective preconditioning strategies. While…
Linearized Localized Orthogonal Decomposition for Quasilinear Nonmonotone Elliptic PDE
Maher Khrais, Barbara Verfürth
In this paper, we propose and analyze a multiscale method for a class of quasilinear elliptic problems of nonmonotone type with spatially multiscale coefficient. The numerical appr…
Offline-online approximation of multiscale eigenvalue problems with random defects
Dilini Kolombage, Barbara Verfürth
In this paper, we consider an elliptic eigenvalue problem with multiscale, randomly perturbed coefficients. For an efficient and accurate approximation of the solutions for many di…