Wikipedia:Articles for deletion/Schwarz function
A quick  search shows that this is pretty clearly a notable concept{{snd}}there are multiple books written about the topic, papers referencing them, etc.  However, with one sentence merely saying whom it was named for and a ref for that, it's hard to see what use it has as-is.  Probably a case of .  &ndash
— User:Deacon, 12:47, 28 May 2020 (UTC)
Stance: comment
Cited policy: WP:BEFORE||WP:HEY (Wikipedia:Articles for deletion)