2 papers
math.NA2021
Accurate error estimation in CG
Gérard Meurant, Jan Papež, Petr Tichý
In practical computations, the (preconditioned) conjugate gradient (P)CG method is the iterative method of choice for solving systems of linear algebraic equations with a re…
math.NA2020
On efficient numerical solution of linear algebraic systems arising in goal-oriented error estimates
Vít Dolejší, Petr Tichý
We deal with the numerical solution of linear partial differential equations (PDEs) with focus on the goal-oriented error estimates including algebraic errors arising by an inaccur…