2 papers
math.NA2025
An optimal diagonalization-based preconditioner for parabolic optimal control problems
Sean Y. Hon, Po Yin Fung, Xue-lei Lin
In this work, we propose a novel diagonalization-based preconditioner for the all-at-once linear system arising from the optimal control problem of parabolic equations. The propose…
math.NA2024
An efficient preconditioner for evolutionary partial differential equations with -method in time discretization
Yuan-Yuan Huang, Po Yin Fung, Sean Y. Hon +1
In this study, the -method is used for discretizing a class of evolutionary partial differential equations. Then, we transform the resultant all-at-once linear system and intro…