Qigang Liang

According to our database, Qigang Liang authored at least 12 papers between 2022 and 2026.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2026

A Two-Level Additive Schwarz Method for Computing Interior Multiple and Clustered Eigenvalues of Symmetric Elliptic Operators.

Qigang Liang, Xuejun Xu

CoRR, April, 2026

Adaptive Multilevel Methods for the Maxwell Eigenvalue Problem.

Qigang Liang, Xuejun Xu, Qingquan Zhang

CoRR, March, 2026

2025

Local Multilevel Preconditioned Jacobi-Davidson Method for Elliptic Eigenvalue Problems on Adaptive Meshes.

Jianing Guo, Qigang Liang, Xuejun Xu

CoRR, November, 2025

Pointwise A Posteriori Error Estimators for Multiple and Clustered Eigenvalue Computations.

Zhenglei Li, Qigang Liang, Xuejun Xu

CoRR, November, 2025

Pointwise A Posteriori Error Estimators for Elliptic Eigenvalue Problems.

Zhenglei Li, Qigang Liang, Xuejun Xu

CoRR, November, 2025

Computing Both Upper and Lower Eigenvalue Bounds by HDG Methods.

Qigang Liang, Xuejun Xu, Liuyao Yuan

Comput. Methods Appl. Math., 2025

2024

A Two-Level Block Preconditioned Jacobi-Davidson Method for Multiple and Clustered Eigenvalues of Elliptic Operators.

Qigang Liang, Wei Wang, Xuejun Xu

SIAM J. Numer. Anal., 2024

2023

A Two-Level Preconditioned Helmholtz Subspace Iterative Method for Maxwell Eigenvalue Problems.

Qigang Liang, Xuejun Xu

SIAM J. Numer. Anal., April, 2023

On a Sharp Estimate of Overlapping Schwarz Methods in H(curl;Ω) and H(div;Ω).

Qigang Liang, Xuejun Xu, Shangyou Zhang

CoRR, 2023

2022

A two-level preconditioned Helmholtz-Jacobi-Davidson method for the Maxwell eigenvalue problem.

Qigang Liang, Xuejun Xu

Math. Comput., 2022

A Weak Galerkin Finite Element Method Can Compute Both Upper and Lower Eigenvalue Bounds.

Qigang Liang, Xuejun Xu, Liuyao Yuan

J. Sci. Comput., 2022

A Two-Level Block Preconditioned Jacobi-Davidson Method for Computing Multiple and Clustered Eigenvalues.

Qigang Liang, Wei Wang, Xuejun Xu

CoRR, 2022