J. Tshimanga

Limited‐memory preconditioners, with application to incremental four‐dimensional variational data assimilation

J. Tshimanga, Serge Gratton, Anthony Weaver et al. · Quarterly Journal of the Royal Meteorological Society · 2008 · 66 citations

Numerical Analysis, Numerical Computation, Engineering +12

On A Class of Limited Memory Preconditioners For Large Scale Linear Systems With Multiple Right-Hand Sides

Serge Gratton, Annick Sartenaer, J. Tshimanga · SIAM Journal on Optimization · 2011 · 49 citations

Numerical Analysis, Mathematical Programming, Engineering +13

Correlation operators based on an implicitly formulated diffusion equation solved with the Chebyshev iteration

Anthony Weaver, J. Tshimanga, Andrea Piacentini · Quarterly Journal of the Royal Meteorological Society · 2015 · 31 citations

Numerical Analysis, Engineering, Diffusion Equation +17

An observation‐space formulation of variational assimilation using a restricted preconditioned conjugate gradient algorithm

J. Tshimanga · Quarterly Journal of the Royal Meteorological Society · 2009 · 29 citations

Numerical Analysis, State Estimation, Conjugate Gradient Algorithm +13

The Exact Condition Number of the Truncated Singular Value Solution of a Linear Ill-Posed Problem

El Houcine Bergou, Serge Gratton, J. Tshimanga · SIAM Journal on Matrix Analysis and Applications · 2014 · 11 citations · Full text

Numerical Analysis, Engineering, Singularly Perturbed Problem +7