2 citations · 3 across the 3 of their papers we have counts for
3 papers
math.NA2021
Solving discrete constrained problems on de Rham complex
Zhongjie Lu
The main difficulty in solving the discrete constrained problem is its poor and even ill condition. In this paper, we transform the discrete constrained problems on de Rham complex…
math.NA2021★ 2 cited
A sparse approximate inverse for triangular matrices based on Jacobi iteration
Zhongjie Lu
In this paper, we propose a simple sparse approximate inverse for triangular matrices (SAIT). Using the Jacobi iteration method, we obtain an expression of the exact inverse of tri…
math.NA2021★ 1 cited
Auxiliary iterative schemes for the discrete operators on de Rham complex
Zhongjie Lu
The main difficulty in solving the discrete source or eigenvalue problems of the operator with iterative methods is to deal with its huge kernel, for example, the $ \nabla…