>>11103134>large chunks of pure math barely care about themThis is actually very sad. Very good professors with high research output in diffeqs are usually confined to being at noncompetitive colleges who get their funding slashed every other year. I go to a very generic state college, and my diffeq prof put out 4 research papers in 2019 alone, he could've taught at a top 20 school if it wasn't for the fact that PDEs are his exclusive area of research.