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A catalog record for this book is available from the British Library.

- Georges-Henri Cottet, Mokamed El-Ayyadi
- IEEE Trans. Image Processing
- 1998

We present a class of time-delay anisotropic diffusion models for image restoration. These models lead to asymptotic states that are selected on the basis of a contrast parameter and bear someâ€¦ (More)

- Mathieu Coquerelle, Georges-Henri Cottet
- J. Comput. Physics
- 2008

We present a vortex method for the simulation of the interact ion of an incompressible flow with rigid bodies. The method is based on a penalization tech nique where the system is considered as aâ€¦ (More)

- Michael Bergdorf, Georges-Henri Cottet, Petros Koumoutsakos
- Multiscale Modeling & Simulation
- 2005

We present novel multilevel particle methods with extended adaptivity in areas where increased resolution is required. We present two complementary approaches as inspired by r-adaptivity and adaptiveâ€¦ (More)

- Georges-Henri Cottet, Petros Koumoutsakos, Mohamed Lemine Ould Salihi
- 2000

The accuracy of vortex methods employing smooth vortex particles/blobs is determined by the blob size, which can be viewed as a mollifier of the vorticity field. For computational efficiency, thisâ€¦ (More)

- Adrien Magni, Georges-Henri Cottet
- J. Comput. Physics
- 2012

In this article we propose and validate new remeshing schemes for the simulation of transport equations by particle methods. Particle remeshing is a common way to control the regularity of theâ€¦ (More)

- Mohamed Lemine Ould-Salihi, Georges-Henri Cottet, Mohammed El Hamraoui
- SIAM J. Scientific Computing
- 2001

We describe and illustrate numerical procedures that combine grid and particle solvers for the solution of the incompressible Navierâ€“Stokes equations. These procedures include vortex in cell (VIC)â€¦ (More)

We illustrate the problem of wake optimization on two examples. In the first example, the destruction of trailing vortices, we show that stochastic optimization is a flexible tool to identify vortexâ€¦ (More)

- Johannes TophÃ¸j Rasmussen, Georges-Henri Cottet, Jens H. Walther
- J. Comput. Physics
- 2011

We present a novel multiresolution Vortex-In-Cell algorithm using patches of varying resolution. The Poisson equation relating the fluid vorticity and velocity is solved using Fast Fourier Transformsâ€¦ (More)

Our goal here is to describe elementary tools allowing to translate collective behavior of large neural networks in a continous, with respect to time and space, framework. Our starting point will beâ€¦ (More)