Talk:Quaternionic manifold

In the definition of quaternionic structure (1.3), the letter $$Q$$ is used to denote an almost quaternionic structure. This is the first usage of $$Q$$ in the article. Should it be replaced with $$E$$ (or $$H$$), given the notation in (1.2)? Michael Albanese (talk) 10:27, 27 July 2020 (UTC)

Overly technical
The article is currently too technical for non-experts to understand; I am adding a tag to suggest the article be improved to be understandable to non-experts. Betanote4 (talk) 18:13, 5 August 2020 (UTC)