Question: What the heck is Navier-Stokes equations in mathematics?
Paraphrase: What the hell is Navier-Stokes conditions in mathematics?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q201321 wdt:P138 ?answer . ?answer wdt:P106 wd:Q170790}
Answer: Sir George Stokes, 1st Baronet, Claude-Louis Navier