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Nov 23, 2018 at 4:40 comment added user19475 Is there a version of abc implying the uniform Mordell conjecture?
Apr 13, 2017 at 12:58 history edited CommunityBot
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Jul 4, 2011 at 1:12 comment added Joe Silverman @Felipe: Thanks for supplying the reference where Bombieri and Gubler say explicitly that one needs effective $ABC$ to get effective Roth. For those who don't have [BG], here's the exact quote from page 497: "Remark 14.4.20. The proof we have given actually shows that an effective version of the $K$-rational $abc$-conjecture implies effective versions of Roth's and Faltings's theorems."
Jul 3, 2011 at 11:40 comment added Felipe Voloch @Joe: And theorem 12.2.9 of op.cit.
Jul 3, 2011 at 11:35 comment added Felipe Voloch @Joe: Yes, it all depends on what is meant by abc conjecture. See remarks 14.4.18 and 14.4.20 in the book of Bombieri and Gubler.
Jul 3, 2011 at 2:42 comment added Joe Silverman @Felipe: Do you mean that an effective ABC conjecture implies an effective version of Roth's theorem? If one only knows, say, that $\max(|a|,|b|,|c|) < K*N(abc)^2$, for some constant $K$, but no bound for $K$ is effectively known, can you deduce an effective version of Roth's theorem? One can certainly conceive of a Diophantine approximation style proof of the ABC conjecture that would lead to an ineffective constant $K$.
Mar 19, 2011 at 4:44 comment added Junkie The techniques are often some sort of Padé approximation, or can be put in a framework of that. The work of the Chudnovskys had a linear diff equation in the background. This gives some cases that "work" I think, but I am no expert. springerlink.com/content/j02t25105r35g171
Mar 19, 2011 at 0:59 history answered Felipe Voloch CC BY-SA 2.5