Zhi-Xin Huo

PDE Realization and Structure-Aware Solvers for a Compact Two-Stage Fourth-Order IMEX Method

This paper develops a PDE realization and solver framework for a compact two-stage fourth-order two-derivative implicit--explicit time discretization for stiff split problems. The key difficulty is a consistency--cost coupling: full-field temporal differentiation is required to preserve the mixed explicit--implicit int...