A few weeks back on the Math Stack Exchange, I asked this question about "interesting" PDEs. It got (no answers and) some deserved criticism, so I opened a discussion on the Meta there and made some pretty big edits in response to feedback, without changing the question I'd intended to ask. There hasn't been much feedback since then, and in particular still no answers.
This all leaves me with no sense of whether
- the (soft) question I actually meant to ask was bad,
- the presentation was still unacceptable after my edits,
- anything else.
I got a hunch that reposting the question here might get better results, but am aware that at least the presentation is still less than ideal (that's never been my strong suit) and maybe there's just nothing salvageable. So, I'd be very grateful for any and all advice.