6 citations · 7 across the 11 of their papers we have counts for
4 papers · 1 filter
Sparsity-Preserving Structured Backward Error Analysis for Double Saddle Point Problems
Pinki Khatun, Sk. Safique Ahmad
Backward error (BE) analysis emerges as a powerful tool for assessing the backward stability and strong backward stability of numerical algorithms. In this paper, we explore struct…
A Class of Generalized Shift-Splitting Preconditioners for Double Saddle Point Problems
Sk. Safique Ahmad, Pinki Khatun
In this paper, we propose a generalized shift-splitting (GSS) preconditioner, along with its two relaxed variants to solve the double saddle point problem (DSPP). The convergence o…
Structured Backward Errors for Special Classes of Saddle Point Problems with Applications
Sk. Safique Ahmad, Pinki Khatun
In the realm of numerical analysis, the study of structured backward errors (BEs) in saddle point problems (SPPs) has shown promising potential for development. However, these inve…
A robust parameterized enhanced shift-splitting preconditioner for three-by-three block saddle point problems
Sk. Safique Ahmad, Pinki Khatun
This paper proposes a new parameterized enhanced shift-splitting (PESS) preconditioner to solve the three-by-three block saddle point problem (SPP). Additionally, we introduce a lo…