Computational Science
sunshine
  • Member for 2 years, 5 months
  • Last seen more than a month ago
  • Nanjing, China
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I am a new graduate majoring in matrix computations, mainly studying Krylov subspace iterative methods and preconditioning techniques. and saddle point problems.

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Votes Newest
7
Does a symmetric positive definite matrix also have $\mathbf{A} = \mathbf{L}^T\mathbf{L}$ (where $\mathbf{L}$ is a lower triangular matrix)?
Nov 5 '19
5
Why the two Gram-Schmidt algorithms produce different results for qr factorization?
Jan 16 '20
5
Why MATLAB chooses the Householder in its built-in function gmres.m?
Dec 13 '19
4
How to use matlab command 'fft' to solve Ax=b arising from Poisson equation?
Oct 30 '19
3
Why iterative method: AMG preconditioned PCG is slower than Matlab direct method 'A\b'?
Sep 1 '19
3
Why do many people use FDM method to solve Stokes equations, i.e., saddle point matrix?
Sep 5 '19
3
How does gmres method iteration behave for this non-diagonalizable matrix?
Nov 4 '19
3
Are there any other better methods than block diagnoal and block upper triangular precondtioner for saddle point problems?
Nov 25 '19
3
What is the **contraction factor and convergence factor** of a iteration method?
Nov 21 '19
3
Does the k-th approximate solution of a stationary iteration belong to the k-th Krylov subspace?
Dec 5 '19

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