It is about this sentence:
In the case of N=3, which the celebrated Neil discovery is about, the best approximation is proven to be built in an interesting way.
I feel that 'about' can be put ahead? Namely, 'about which is the celebrated Neil discovery'?
I think your original formulation is clear, but perhaps not elegent
In the case of N=3, which the celebrated Neil discovery is about, the best approximation is proven to be built in an interesting way.
I think that using "about" here may be the cause of my feeling of unease. Suppose instead we make the Neil discovery more "active"
In the case of N=3, which the celebrated Neil discovery addresses, the best approximation is proven to be built in an interesting way.
we could then do the kind of reordering you suggest
In the case of N=3, which is addressed by the celebrated Neil discovery, the best approximation is proven to be built in an interesting way.
Close by, in the churchyard, is the famous Rudston stone, from which the village takes its name.
We can put the preposition immediately before the relative pronoun (more formal) or at the end of the relative clause (more informal).
So, in your case the sentence is totally correct.
In the case of N=3,about which the celebrated Neil discovery is, the best approximation is proven to be built in an interesting way.
