๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A Lower Bound in the abc Conjecture

โœ Scribed by Machiel Van Frankenhuysen


Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
91 KB
Volume
82
Category
Article
ISSN
0022-314X

No coin nor oath required. For personal study only.

โœฆ Synopsis


We show that there exists an infinite sequence of sums P: a+b=c of rational integers with large height compared to the radical: h(P) r(P)+4K l -h(P)ร‚log h(P) with K l =2 lร‚2 4 -2?ร‚e>1.517 for l=0.5990. This improves the result of Stewart and Tijdeman [9]. The value of l comes from an asymptotic bound for the packing density of spheres. We formulate our result such that improved knowledge of l immediately improves the value of K l .


๐Ÿ“œ SIMILAR VOLUMES


A note on the abc conjecture
โœ Pei-Chu Hu; Chung-Chun Yang ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 187 KB
A lower bound for groupies in graphs
โœ Mackey, John ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 145 KB ๐Ÿ‘ 2 views

A non-isolated vertex of a graph G is called a groupie if the average degree of the vertices connected to it is larger than or equal to the average degree of the vertices in G. An isolated vertex is a groupie only if all vertices of G are isolated. While it is well known that every graph must contai

A Lower Bound for the Height in Abelian
โœ Francesco Amoroso; Roberto Dvornicich ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 172 KB

We produce an absolute lower bound for the height of the algebraic numbers (different from zero and from the roots of unity) lying in an abelian extension of the rationals. The proof rests on elementary congruences in cyclotomic fields and on Kronecker Weber theorem.

The ABC Conjecture and the Powerful Part
โœ Paulo Ribenboim; Gary Walsh ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 130 KB

We consider non-degenerate binary recurring sequences with positive discriminant, relatively prime parameters, and whose initial terms satisfy a certain divisibility condition. Assuming that the ABC conjecture is true, we show that the powerful part of the terms of the sequence remain ``small.'' In