Deletion of Dual q-Hahn polynomials (2nd nomination)

Comment: AFD is not a forum for determining how complete an article is, and being "under construction" is not a basis for deletion.Neither is the "active" or "retired" status of the article creator. It looks like an acceptable stub. The issue is whether the subject is |notable. I am no math expert, but this specific topic has numerous instances of coverage in apparently reliable sources viewable at the "scholar"  and book links above, and has been discussed for decades. It is not something nonnotable which some hobbyist just coined, as is too common in articles about math in Wikipedia. We need input from someone who can access the numerous instances of coverage which can only be seen in snippets or which are behind paywall
Stance: comment
Cited policy: Wikipedia:Notability (WP:N)