Concept
Principe variationnel
Publications associées (53)
Geometrical Effect in 2D Nanopores
Aleksandra Radenovic, Andras Kis, Duncan Thomas Lindsay Alexander, Vasiliki Tileli, Dumitru Dumcenco, Martina Lihter, Ke Liu, Davide Deiana, Aditya Sarathy
A long-standing problem in the application of solid-state nanopores is the lack of the precise control over the geometry of artificially formed pores compared to the well-defined geometry in their biological counterpart, that is, protein nanopores. To date ...
American Chemical Society2017On the statistical physics of chains and rods, with application to multi-scale sequence-dependent DNA modelling
The complex mechanisms involved in cellular processes have been increasingly understood this past century and the central role of the DNA molecule has been recognized. The base pair sequence along a DNA fragment is observed not only to encode the genomic i ...
EPFL2016Orlicz regularity of the gradient of solutions to quasilinear elliptic equations in the plane
Given a planar domain Omega, we study the Dirichlet problem {-divA(x, del v) = f in Omega, v = 0 on partial derivative Omega, where the higher-order term is a quasilinear elliptic operator, and f belongs to the Zygmund space L(log L)delta(log log log L)(be ...
Springer International Publishing Ag2016Exploring stabilisation techniques for the reduced basis approximation of avection-diffusion PDEs
In this thesis, we explore possible stabilisation methods for the reduce basis approximation of advection-diffusion problems, for which the advection term is dominating. The options we consider are mainly inspired by the Variational Multiscale method (VMS) ...
2016Variational minimization of orbital-density-dependent functionals
Nicola Marzari, Giovanni Borghi, Andrea Ferretti
Orbital-density-dependent functionals, such as the Perdew-Zunger or the Koopmans-compliant functionals, are used to remove unphysical self-interaction energies and to restoremissing piece-wise linearity in approximate formulations of density-functional the ...
Amer Physical Soc2015Variational principle for magnetisation dynamics in a temperature gradient
Jean-Philippe Ansermet, Sylvain Bréchet
By applying a variational principle on a magnetic system within the framework of extended irreversible thermodynamics, we find that the presence of a temperature gradient in a ferromagnet leads to a generalisation of the Landau-Lifshitz equation with an ad ...
EDP Sciences2015Microwave gas breakdown in elliptical waveguides
Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis
This paper analyzes the microwave gas discharge within elliptical waveguides excited by the fundamental mode. The Rayleigh-Ritz method has been applied to solve the continuity equation. The eigenvalue problem defined by the breakdown condition has been sol ...
Amer Inst Physics2014A task-parameterized probabilistic model with minimal intervention control
We present a task-parameterized probabilistic model encoding movements in the form of virtual spring-damper systems acting in multiple frames of reference. Each candidate coordinate system observes a set of demonstrations from its own perspective, by extra ...
2014Existence and conditional energetic stability of three-dimensional fully localised solitary gravity-capillary water waves
In this paper we show that the hydrodynamic problem for three-dimensional water waves with strong surface-tension effects admits a fully localised solitary wave which decays to the undisturbed state of the water in every horizontal direction. The proof is ...
Academic Press Inc Elsevier Science2013Estimating MFDs in simple networks with route choice
The concept of the Macroscopic Fundamental Diagram (MFD) is elegant and attractive because it provides a global view of traffic behavior and performance at a network level. However, recent research shows that the MFD shape can be influenced by local traffi ...
Elsevier2013