Maybe recall that mesh distributed among processors

- Bypassing functional analysis and existence and uniqueness theorems - The keys are that FEM approximates the variational problem and its relation to the minimisation problem

Go fast. Natural vs essential BCs

Go fast. Natural vs essential BCs

Comment on regularity

- Recasting the problem into a discrete vector subspace - If (V) is well-posed, then (G) is well-posed (previous theorem for finite dim, also)

The two key ingredients are:

- We exchanged geometric complexity for integration complexity - See [de Prenter, Verhoosel, van Brummelen, Larson & Badia, subm.](https://arxiv.org/abs/2208.08538)

| [Burman et al., 2015](https://onlinelibrary.wiley.com/doi/full/10.1002/nme.4823) | [Saye, 2015](https://epubs.siam.org/doi/10.1137/140966290) and [2022](https://www.sciencedirect.com/science/article/pii/S002199912100615X) |

Recasting as the graph of a height function