GALLERY:

COLLABORATIVE WORKS

[Travaux Collaboratifs]

Jean-François COLONNA

CMAP (Centre de Mathématiques APpliquées), Ecole Polytechnique, CNRS
france telecom, France Telecom R&D
91128 Palaiseau Cedex
France

tel = +33.(0)1.69.33.46.45
jean-francois.colonna@polytechnique.edu

http://www.lactamme.polytechnique.fr

http://www.cmap.polytechnique.fr/~colonna

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• Andrea Baldassarri, Andrea Gabrielli and Bernard Sapoval:
• Marcel Filoche and Bernard Sapoval:
• Jean-François Gouyet, Michel Rosso and Bernard Sapoval:
• Hiroko Kitaoka and Bernard Sapoval:
• Kiran Kolwankar and Bernard Sapoval:
• Stephanie Russ and Bernard Sapoval:
• Marcel Filoche:
• Jean-François Gouyet and Mathis Plapp:
• Marie Farge:
• Claude Bardos and François Golse:
• Jean-Louis Basdevant:
• France Telecom ("Churn"):

Collaborative Works [Travaux Collaboratifs]:

Andrea Baldassarri, Andrea Gabrielli and Bernard Sapoval:

• Erosion of a bidimensional random (with small and large scale correlations) medium.
• Erosion of a bidimensional random (with small and large scale correlations) medium.



• Erosion of a bidimensional random island.
• Erosion of a bidimensional random island.
• Erosion of a bidimensional random island.
• Erosion of a bidimensional random island.
• Erosion of a set of four bidimensional random islands.



• Erosion of a bidimensional random (with small scale correlations) island.
• Erosion of a bidimensional random (with small scale correlations) island.
• Erosion of a bidimensional random (with small scale correlations) island.
• Erosion of a bidimensional random (with small scale correlations) island.
• Erosion of a set of four bidimensional random (with small scale correlations) islands.



• Erosion of a bidimensional random (with large scale correlations) island.
• Erosion of a bidimensional random (with large scale correlations) island.
• Erosion of a bidimensional random (with large scale correlations) island.
• Erosion of a bidimensional random (with large scale correlations) island.
• Erosion of a set of four bidimensional random (with large scale correlations) islands.



• Erosion of a bidimensional random (with small and large scale correlations) island.
• Erosion of a bidimensional random (with small and large scale correlations) island.
• Erosion of a bidimensional random (with small and large scale correlations) island.
• Erosion of a bidimensional random (with small and large scale correlations) island.
• Erosion of a set of four bidimensional random (with small and large scale correlations) islands.



• Erosion of a bidimensional random (with small and large scale correlations) medium by means of an heterogeneous sea.



• See more realistic pictures of bidimensional erosion.



• Erosion of a tridimensional random medium.
• Erosion of a tridimensional random medium.



• See more realistic pictures of tridimensional erosion.



Marcel Filoche and Bernard Sapoval:

• RestrictedAccess --> Diffusion inside a tridimensional fractal structure.



Jean-François Gouyet, Michel Rosso and Bernard Sapoval:

• See pictures of fractal diffusion fronts in a bidimensional medium.



Hiroko Kitaoka and Bernard Sapoval:

• See pictures of the human pulmonary acinus.



Kiran Kolwankar and Bernard Sapoval:

• RestrictedAccess --> Etching of a bidimensional random medium with a uniform temperature.
• RestrictedAccess --> Etching of a bidimensional random medium with a non uniform temperature -'gaussian' like-.
• RestrictedAccess --> Etching of a bidimensional random medium with a non uniform temperature -'archimedian' like-.



• See more realistic pictures of bidimensional etching.



• RestrictedAccess --> Etching of a tridimensional random medium.



Stephanie Russ and Bernard Sapoval:

• RestrictedAccess --> Vibration of a fractal drum (Dirichlet boundary conditions, mode=1).
• RestrictedAccess --> Vibration of a fractal drum (Dirichlet boundary conditions, mode=2).
• RestrictedAccess --> Vibration of a fractal drum (Dirichlet boundary conditions, mode=3).
• RestrictedAccess --> Vibration of a fractal drum (Dirichlet boundary conditions, mode=4).



Marcel Filoche:

• RestrictedAccess --> The electric potential around a tridimensional fractal electrode.



Jean-François Gouyet and Mathis Plapp:

• RestrictedAccess --> Spinodal decomposition of a binary alloy.



Marie Farge:

• RestrictedAccess --> Tridimensional display of the wavelet transform (colors=module, grey lines=0-phase lines) of a bidimensional vorticity field.



• RestrictedAccess --> Wavelet filtering of a bidimensional turbulent field.
• RestrictedAccess --> Wavelet reconstruction of a bidimensional turbulent field using the 16 first dilatations.



• RestrictedAccess --> The vorticity of a tridimensional turbulent field.



Claude Bardos and François Golse:

• Chaotic trajectory: multiple reflexions between two parallel planes -static view-.
• Chaotic trajectory: multiple reflexions between two parallel planes for 64 different initial conditions.
• Chaotic trajectory: multiple reflexions between two parallel planes -rotating views-.



• Density of chaotic trajectories.
• Dynamics of the density of chaotic trajectories.



• Chaotic trajectory: multiple reflexions between two parallel planes -rotating views, non diffusive case-.



Jean-Louis Basdevant:

• See pictures of the hydrogen atom.
• See pictures of the diffraction phenomenon.



France Telecom ("Churn"):

• RestrictedAccess --> Data-mining: identification of 'churning' customers.

Copyright (c) Jean-François Colonna, 2002-2010.
Copyright (c) France Telecom R&D and CMAP (Centre de Mathématiques APpliquées) / Ecole Polytechnique, 2002-2010.