Special Session 126: Machine Learning and New Framework for Solving Partial Differential Equations

Reduced Krylov Basis Methods
Yuwen Li
Zhejiang University
Peoples Rep of China
Co-Author(s):    Yuwen Li
Abstract:
The reduced basis method is popular for numerically solving a family of parametrized PDEs. In this talk, I will present our new reduced basis algorithm based on preconditioned Krylov subspace methods. The proposed methods use a preconditioned Krylov subspace method for a high-fidelity discretization of one parameter instance to generate orthogonal basis vectors of the reduced basis subspace. Then the family of large-scale discrete parameter-dependent problems are approximately solved in the low-dimensional Krylov subspace. The material in my talk is based on joint works with Ludmil Zikatanov and Cheng Zuo.