Claude Fable produced a counterexample to the Jacobian Conjecture
151–160 of 562 posts
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#152For all thehubbub, as far as I know, all the math breakthroughs via AI that I've heard about have come from Anthropic and OpenAI, not Chinese models. I could have missed those announcements, but one might think that between close to frontier performance plus cheap tokens, that they'd be leading the way on these things.
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#153Earlier quoted context omitted.
I'm not complaining about Wikipedia here, just noting for the thread: it's a vector of polynomials. It has a nonsingular Jacobian. Provided with it are 3 distinct points it sends to the same point; it can't be invertible. What Wikipedia says about this doesn't matter, does it?
Wikipedia does have a rule allowing "routine calculations" https://en.wikipedia.org/wiki/Wikipedia:No_original_research... Of course given the magnitude of the statement a bit of care is warranted, but the rules do allow it.
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#154For all thehubbub, as far as I know, all the math breakthroughs via AI that I've heard about have come from Anthropic and OpenAI, not Chinese models. I could have missed those announcements, but one might think that between close to frontier performance plus cheap tokens, that they'd be leading the way on these things.
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#155But I'm curious—can Fable handle cases where n=2 as well?
Wasn't it proven true in general for n=2 (NGL I wanted to suggest someone to go for the JC using 5.6 after the CDC proof came out, but then on reflection felt I should neither waste people's time NOR contribute to the myth of AI :) My prediction is that the bubble will burst in 2031 Q4, one year after the Riemann Hypothesis is expected to fall (according to Demis) After 2031, I will suggest going for the JC for N=4 b…
Assuming you mean C^2 -> C^2, Do you have a link? If so it would be good to add to the wikipedia page. Also I'm not sure, but does the fact that there's a disproof for n=3 imply that it's false in all n>=3, or could there be higher dimensions where it still holds (I'd guess not since you could probably trivially "embed" this in higher dimensions in some way)
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#156For the people saying goalposts have moved etc, whats your endgame?
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#157Earlier quoted context omitted.
I think the editor themselves misunderstood the conjecture. UPD: The edit got reverted and there's this on the talk page now: https://en.wikipedia.org/wiki/Talk:Jacobian_conjecture#c-DaR... UPD2: There are edit wars happening now: https://en.wikipedia.org/w/index.php?title=Jacobian_conjectu... https://en.wikipedia.org/wiki/Talk:Jacobian_conjecture#c-Sea...
Wikipedia's gonna Wikipedia. Unless there's a material debate over the Jacobian Conjecture itself, there's really no open question here. This isn't a complicated proof; it's a straightforwardly checkable certificate of a solution.
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#158Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#159I find it interesting that the counterexample uses C as a field. C is twisted and weird. Maybe the Jacobian Conjecture still holds for reals?
Why do you say this? I've admittedly never done a proper complex analysis course but I got the impression that that complex differentiability was a very strong condition that results in holomprhic functions behaving "nicely" in ways that real functions do not
Re: Claude Fable produced a counterexample to the Jacobian Conjecture
#160Maybe not? https://en.wikipedia.org/w/index.php?title=Jacobian_conjectu...
This is nonsensical: Properness of the map is equivalent to its being an isomorphism (quick proof: Jacobian invertible implies that the map is etale, and properness would imply that it is finite etale, but affine space doesn't admit non-trivial finite etale covers), so the lack of properness is just another way of verifying that this is indeed a counterexample.