已投稿的论文:
[1] Li, Buyang; Li, Zhenglei; Liang, Qigang; Xu, Xuejun Sharp pointwise error estimates of finite element methods for the biharmonic equation. Submitted.
[2] Chen, Longxi; Liang, Qigang; Xu, Xuejun A cluster-wise self-consistent field algorithm for the manifold optimization problem. Submitted.
[3] Guo, Jianing; Liang, Qigang An a posteriori error estimator for C^0IPG approximation of multiple and clustered eigenvalues of the biharmonic operator. arXiv:2607.23215, Under review.
[4] Liang, Qigang; Xu, Xuejun A two-level additive Schwarz method for computing interior multiple and clustered eigenvalues of symmetric elliptic operators. arXiv:2604.13889, In revision.
已接收或发表的论文:
[1] Guo, Jianing; Liang, Qigang; Xu, Xuejun Local multilevel preconditioned Jacobi-Davidson method for elliptic eigenvalue problems on adaptive meshes. To appear in Adv. Comput. Math., 2026.
[2] Liang, Qigang; Xu, Xuejun; Zhang, Qingquan Adaptive multilevel methods for the Maxwell eigenvalue problem. To appear in Commun. Comput. Phys., 2026.
[3] Liang, Qigang; Xie, Hehu; Xu, Xuejun An augmented subspace method for computing interior multiple and clustered eigenvalues of symmetric elliptic operators. To appear in IMA J. Numer. Anal., 2026.
[4] Li, Zhenglei; Liang, Qigang; Xu, Xuejun Pointwise a posteriori error estimators for multiple and clustered eigenvalue computations. J. Sci. Comput. 109 (2026), no. 1, Paper No. 1, 24 pp.
[5] Li, Zhenglei; Liang, Qigang; Xu, Xuejun Pointwise a posteriori error estimators for elliptic eigenvalue problems. J. Intell. Algorithms Sci. Comput., 1(1):111-132, 2026. (Special Issue)
[6] Liang, Qigang; Xu, Xuejun; Yuan, Liuyao Computing both upper and lower eigenvalue bounds by HDG methods. Comput. Methods Appl. Math. 25 (2025), no. 3, 643-663. (Special Issue)
[7] Liang, Qigang; Xu, Xuejun; Zhang, Shangyou On a sharp estimate of overlapping Schwarz methods in H(curl;Ω) and H(div;Ω). IMA J. Numer. Anal. 45 (2025), no. 2, 1009-1027.
[8] Liang, Qigang; Wang, Wei; Xu, Xuejun A domain decomposition method for nonconforming finite element approximations of eigenvalue problems. Commun. Appl. Math. Comput. 7 (2025), no. 2, 606-636. (Special Issue)
[9] Liang, Qigang; Wang, Wei; Xu, Xuejun A two-level block preconditioned Jacobi-Davidson method for multiple and clustered eigenvalues of elliptic operators. SIAM J. Numer. Anal. 62 (2024), no. 2, 998-1019.
[10] Liang, Qigang; Xu, Xuejun A two-level preconditioned Helmholtz subspace iterative method for Maxwell eigenvalue problems. SIAM J. Numer. Anal. 61 (2023), no. 2, 642-674.
[11] Liang, Qigang; Xu, Xuejun; Yuan, Liuyao A weak Galerkin finite element method can compute both upper and lower eigenvalue bounds. J. Sci. Comput. 93 (2022), no. 1, Paper No. 19, 21 pp.
[12] Liang, Qigang; Xu, Xuejun A two-level preconditioned Helmholtz-Jacobi-Davidson method for the Maxwell eigenvalue problem. Math. Comp. 91 (2022), no. 334, 623-657.