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THE JUMPING CHAMPION CONJECTURE

Published online by Cambridge University Press:  04 May 2015

Daniel A. Goldston
Affiliation:
Department of Mathematics, San José State University, 315 MacQuarrie Hall, One Washington Square, San José, CA 95192-0103, U.S.A. email daniel.goldston@sjsu.edu
Andrew H. Ledoan
Affiliation:
Department of Mathematics, University of Tennessee at Chattanooga, 415 EMCS Building (Mail Stop 6956), 615 McCallie Avenue, Chattanooga, TN 37403-2598, U.S.A. email andrew-ledoan@utc.edu
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Abstract

An integer $d$ is called a jumping champion for a given $x$ if $d$ is the most common gap between consecutive primes up to $x$. Occasionally, several gaps are equally common. Hence, there can be more than one jumping champion for the same $x$. In 1999, Odlyzko et al provided convincing heuristics and empirical evidence for the truth of the hypothesis that the jumping champions greater than 1 are 4 and the primorials $2,6,30,210,2310,\ldots \,$. In this paper, we prove that an appropriate form of the Hardy–Littlewood prime $k$-tuple conjecture for prime pairs and prime triples implies that all sufficiently large jumping champions are primorials and that all sufficiently large primorials are jumping champions over a long range of $x$.

Type
Research Article
Copyright
Copyright © University College London 2015 

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