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Article Dans Une Revue Mathematics and Computers in Simulation Année : 2010

On the deterministic solution of multidimensional parametric models using the Proper Generalized Decomposition

Résumé

This paper focuses on the efficient solution of models defined in high dimensional spaces. Those models involve numerous numerical challenges because of their associated curse of dimensionality. It is well known that in meshbased discrete models the complexity (degrees of freedom) scales exponentially with the dimension of the space. Many models encountered in computational science and engineering involve numerous dimensions called configurational coordinates. Some examples are the models encountered in biology making use of the chemical master equation, quantum chemistry involving the solution of the Schr¨odinger or Dirac equations, kinetic theory descriptions of complex systems based on the solution of the so-called Fokker-Planck equation, stochastic models in which the random variables are included as new coordinates, financial mathematics, ... This paper revisits the curse of dimensionality and proposes an efficient strategy for circumventing such challenging issue. This strategy, based on the use of a Proper Generalized Decomposition, is specially well suited to treat the multidimensional parametric equations.
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Dates et versions

hal-00704427 , version 1 (08-06-2012)

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Etienne Pruliere, Francisco Chinesta, Amine Ammar. On the deterministic solution of multidimensional parametric models using the Proper Generalized Decomposition. Mathematics and Computers in Simulation, 2010, 81 (4), pp.791-810. ⟨10.1016/j.matcom.2010.07.015⟩. ⟨hal-00704427⟩
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