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Structure of Sets with Small Sumset and Applications

 

Marketed By :  LAP LAMBERT Academic Publishing   Sold By :  Kamal Books International  
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  • Product Description
 

The famous (3k ? 4)-Theorem of Freiman states that if the doubling A+A of a set A of coprime integers satis?es A + A ? 3|A| ? 4, then A is an interval with at most |A| ? 3 holes. It occurs, that sets with the same number of holes do not necessarily have doublings of the same size. It depends on the position of the holes. It was the main objective of this master thesis to determine the position of the holes for sets with small doubling. The answer to this question was given recently by Freiman and in here it is generalized to the case with di?erent summands. In the main result, it is proved that if A and B are sets with same diameter and small sumset, then A + B contains an interval of length at least half the total length of A + B. If x is a hole of A + B in the left of the interval, then x is a hole of both A an B, and if it is a hole at the right side of the interval, then x ? l is a hole of A and B. Applications of this results are also presented, concerning difference sets, sum-free sets and the Frobenius problem.

Product Specifications
SKU :COC93423
AuthorItziar Bardaji Goikoetxea
LanguageEnglish
BindingPaperback
Number of Pages76
Publishing Year2011-02-20T00:00:00.000
ISBN978-3843383271
Edition1 st
Book TypeAlgebra
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-14 00:00:00
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