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SETS WITH ALMOST COINCIDING REPRESENTATION FUNCTIONS

Part of: Sequences and sets

Published online by Cambridge University Press:  28 June 2013

SÁNDOR Z. KISS ,
ESZTER ROZGONYI  and
CSABA SÁNDOR
SÁNDOR Z. KISS*
Affiliation:
Institute of Mathematics, Budapest University of Technology and Economics, H-1529 Budapest, PO Box 91, Hungary email reszti@math.bme.hucsandor@math.bme.hu Computer and Automation Research Institute of the Hungarian Academy of Sciences, Lágymányosi utca 11, H-1111 Budapest, Hungary
ESZTER ROZGONYI
Affiliation:
Institute of Mathematics, Budapest University of Technology and Economics, H-1529 Budapest, PO Box 91, Hungary email reszti@math.bme.hucsandor@math.bme.hu
CSABA SÁNDOR
Affiliation:
Institute of Mathematics, Budapest University of Technology and Economics, H-1529 Budapest, PO Box 91, Hungary email reszti@math.bme.hucsandor@math.bme.hu
*
✉kisspest@cs.elte.hu
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Abstract

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For a given integer $n$ and a set $ \mathcal{S} \subseteq \mathbb{N} $, denote by ${ R}_{h, \mathcal{S} }^{(1)} (n)$ the number of solutions of the equation $n= {s}_{{i}_{1} } + \cdots + {s}_{{i}_{h} } $, ${s}_{{i}_{j} } \in \mathcal{S} $, $j= 1, \ldots , h$. In this paper we determine all pairs $( \mathcal{A} , \mathcal{B} )$, $ \mathcal{A} , \mathcal{B} \subseteq \mathbb{N} $, for which ${ R}_{3, \mathcal{A} }^{(1)} (n)= { R}_{3, \mathcal{B} }^{(1)} (n)$ from a certain point on. We discuss some related problems.

Keywords

additive number theoryrepresentation functions

MSC classification

Secondary: 11B34: Representation functions
Type
Research Article
Information
Bulletin of the Australian Mathematical Society , Volume 89 , Issue 1 , February 2014 , pp. 97 - 111
Copyright
Copyright ©2013 Australian Mathematical Publishing Association Inc. 

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