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Sums of Dilates

Published online by Cambridge University Press:  01 September 2008

BORIS BUKH*
Affiliation:
Department of Mathematics, Fine Hall, Washington Road, Princeton, NJ 08544-1000, USA (e-mail: bbukh@math.princeton.edu)

Abstract

The λ-dilate of a set A is λċA={λa : aA}. We give an asymptotically sharp lower bound on the size of sumsets of the form λ1ċA+ċċċ+λkċA for arbitrary integers λ1,. . .,λk and integer sets A. We also establish an upper bound for such sums, which is similar to, but often stronger than Plünnecke's inequality.

Type
Paper
Copyright
Copyright © Cambridge University Press 2008

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