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18 papers · 1 filter
Localised Wannier functions in metallic systems
Horia Cornean, David Gontier, Antoine Levitt +1
The existence and construction of exponentially localised Wannier functions for insulators is a well-studied problem. In comparison, the case of metallic systems has been much less…
Permeability of porous foamy materials
V. Langlois, V. H. Trinh, C. Lusso +4
In this paper, we study the effects of both the amount of open cell walls and their aperture sizes on solid foams permeability. FEM flow simulations are performed at both pore and…
An iterative ensemble Kalman filter in presence of additive model error
Pavel Sakov, Jean-Matthieu Haussaire, Marc Bocquet
The iterative ensemble Kalman filter (IEnKF) in a deterministic framework was introduced in Sakov et al. (2012) to extend the ensemble Kalman filter (EnKF) and improve its performa…
A Hybrid High-Order method for highly oscillatory elliptic problems
Matteo Cicuttin, Alexandre Ern, Simon Lemaire
We devise a Hybrid High-Order (HHO) method for highly oscillatory elliptic problems that is capable of handling general meshes. The method hinges on discrete unknowns that are poly…
Hybrid High-Order methods for finite deformations of hyperelastic materials
Mickaël Abbas, Alexandre Ern, Nicolas Pignet
We devise and evaluate numerically Hybrid High-Order (HHO) methods for hyperelastic materials undergoing finite deformations. The HHO methods use as discrete unknowns piecewise pol…
Stock-flow consistent macroeconomic model with nonuniform distributional constraint
Aurélien Hazan
We report on results concerning a partially aggregated Stock Flow Consistent (SFC) macroeconomic model in the stationary state where the sectors of banks and firms are aggregated,…