Partitions of groups into thin subsets
Let G be an infinite group with the identity e, κ be an infinite cardinal ≤|G|. A subset A⊂G is called κ-thin if |gA∩A|≤κ for every g∈G∖{e}. We calculate the minimal cardinal μ(G,κ) such that G can be partitioned in μ(G,κ) κ-thin subsets. In particular, we show that the statement μ(R,ℵ₀)=ℵ₀ is equiv...
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| Veröffentlicht in: | Algebra and Discrete Mathematics |
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| Datum: | 2011 |
| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут прикладної математики і механіки НАН України
2011
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/154850 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Partitions of groups into thin subsets / I. Protasov // Algebra and Discrete Mathematics. — 2011. — Vol. 11, № 2. — С. 78–81. — Бібліогр.: 6 назв. — англ. |