Small doubling in ordered nilpotent groups of class 2

被引:2
作者
Freiman, Gregory A. [1 ]
Herzog, Marcel [1 ]
Longobardi, Patrizia [2 ]
Maj, Mercede [2 ]
Stanchescu, Yonutz V. [3 ,4 ]
机构
[1] Tel Aviv Univ, Dept Math, Raymond & Beverly Sackler Fac Exact Sci, Tel Aviv, Israel
[2] Univ Salerno, Dipartimento Matemat, Via Giovanni Paolo 2, I-84084 Salerno, Italy
[3] Open Univ Israel, IL-43107 Raanana, Israel
[4] Afeka Acad Coll, IL-69107 Tel Aviv, Israel
关键词
Ordered groups; Finite subsets; Small doubling; Nilpotent groups; FREIMANS THEOREM; FINITE SUBSETS; ABELIAN-GROUP; SET ADDITION; PRODUCT;
D O I
10.1016/j.ejc.2017.07.006
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The aim of this paper is to present a complete description of the structure of finite subsets S of torsion-free nilpotent groups of class 2 satisfying vertical bar S-2 vertical bar = 3 vertical bar S vertical bar - 2. In view of results in [12], this gives a complete description of the structure of finite subsets with the above property in any torsion-free nilpotent group. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:87 / 95
页数:9
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