Multiplicative operator splitting schemes across dimensions were examined for designing nonlinear diffusion integrators. These were presented as alternatives to the additive operator splitting (AOS) schemes. Multiple timestep methods were introduced for examining multiplicative operator splittings across scales. An example was discussed to illustrate how multiple timestep methods could be use to improve the diffusion process.
- Additive operator splittings
- Multiple timestep methods
- Multiplicative operator splittings
- Nonlinear diffusion