Structured condition numbers for generalized saddle point systems. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2023)

Condition numbers for the Moore-Penrose inverse and the least squares problem involving rank-structured matrices. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2023)

Structured Backward Errors for Special Classes of Saddle Point Problems with Applications. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2024)

A class of Parameterized Shift-Splitting Preconditioners for Regularized Three-by-Three Block Saddle Point Problems. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2024)

Structured Backward Error Analysis with Preserving Sparsity for Three-by-Three Block Saddle Point Problems. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2024)

A robust parameterized enhanced shift-splitting preconditioner for three-by-three block saddle point problems. - Sk. Safique Ahmad; Pinki Khatun (J. Comput. Appl. Math., 2025)

Partial Condition Numbers for Double Saddle Point Problems. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2025)

Structured Backward Errors of Sparse Generalized Saddle Point Problems with Hermitian Block Matrices. - Sk. Safique Ahmad; Pinki Khatun (CoRR, 2025)

A class of generalized shift-splitting preconditioners for double saddle point problems. - Sk. Safique Ahmad; Pinki Khatun (Appl. Math. Comput., 2026)