Optimisation of the local τ_m models

The addition of the local τ_m parameter to the set $\mathfrak{F}_i$ creates a new set of models which will be labelled $\mathfrak{T}_i$. These include models tm0 to tm9. The local τ_m parameter is the single member of the set $\mathfrak{D}_i$ and in set notation

$$\mathfrak{T}_i = \mathfrak{D}_i \cup \mathfrak{F}_i.$$ (15.2)

Although the Brownian rotational diffusion parameter local τ_m is optimised, this category is residue specific. As such the complexity of the optimisation is lower than the next two categories. It is slightly greater than the optimisation of the set $\mathfrak{F}_i$ as

$$\mathfrak{T}_i = 1 + k \leqslant 6,$$ (15.3)

where k is the number of model-free parameters.