Result: A lattice point problem and additive number theory

Title:
A lattice point problem and additive number theory
Source:
Combinatorica. 15:301-309
Publisher Information:
Springer Science and Business Media LLC, 1995.
Publication Year:
1995
Document Type:
Academic journal Article
File Description:
application/xml
Language:
English
ISSN:
1439-6912
0209-9683
DOI:
10.1007/bf01299737
Rights:
Springer TDM
Accession Number:
edsair.doi.dedup.....06259dfaab67c557cf807018570f0b46
Database:
OpenAIRE

Further Information

Let \(f(n,d)\) denote the minimal number such that every set of \(f(n,d)\) lattice points in a \(d\) dimensional space contains \(n\) points whose centroid (mean) is also a lattice point. Here the estimate \(f(n,d) < (cd \log d)^dn\) is proved, a sharp one for fixed \(d\) and \(n \to \infty\). The proof combines Plünnecke's ideas, expansion properties of graphs with given eigenvalues, and classical exponential sums to evaluate the eigenvalues of certain Cayley graphs.