33 citations · 43 across the 2 of their papers we have counts for
3 papers
Multipreconditioned GMRES for Shifted Systems
Tania Bakhos, Peter Kitanidis, Scott Ladenheim +2
An implementation of GMRES with multiple preconditioners (MPGMRES) is proposed for solving shifted linear systems with shift-and-invert preconditioners. With this type of precondit…
A Fast Algorithm for Parabolic PDE-based Inverse Problems Based on Laplace Transforms and Flexible Krylov Solvers
Tania Bakhos, Arvind K. Saibaba, Peter K. Kitanidis
We consider the problem of estimating parameters in large-scale weakly nonlinear inverse problems for which the underlying governing equations is a linear, time-dependent, paraboli…
A Flexible Krylov Solver for Shifted Systems with Application to Oscillatory Hydraulic Tomography
Arvind K. Saibaba, Tania Bakhos, Peter K. Kitanidis
We discuss efficient solutions to systems of shifted linear systems arising in computations for oscillatory hydraulic tomography (OHT). The reconstruction of hydrogeological parame…