puits (1) trajectoire (1) temps (durée) (1) norme (1) pression (1) papier (1) modèle (1) conservation (1) taux (1) Dynamics (1) Development (1) Decay (1) Conservation (1) Variation (1) Time (1) Speed (1) Sobolev spaces (1) Resemblance (Philosophy) (1) Pressure (1) Paper (1) Motion (1) Momentum (Mechanics) (1) Mass (1) Law (1) Heat equation (1) Heat (1) Example (1) Estimates (1) Dynamics (1) Center of mass (1)