Refactorization of a variable step, unconditionally stable method of Dahlquist, Liniger and Nevanlinna

William Layton, Wenlong Pei, Catalin Trenchea

The one-leg, two-step time-stepping scheme proposed by Dahlquist, Liniger and Nevanlinna has clear advantages in complex, stiff numerical simulations: unconditional $G$-stability f…