Given a Haj6s factorization of Z,, De Felice has shown that an + Jb + bag is finitely completable to a d-code, d <3. In this article, we prove that the code u" + aPbaQ is finitely completable but not always to a d-code with d < 3.
The Hajós Factorization of Elementary 3-Groups
✍ Scribed by Khalid Amin
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 68 KB
- Volume
- 224
- Category
- Article
- ISSN
- 0021-8693
No coin nor oath required. For personal study only.
✦ Synopsis
If G is a finite abelian group and n ) 1 is an integer, we say that G has the Hajos n-property, or is n-good if from each decomposition G s S S . . . S of G ´1 2 n into a direct product of subsets, it follows that at least one of the S is periodic, i Ä 4 meaning that there exists x g G y e such that xS s S . Otherwise, G is said to i i
be n-bad. In this paper, we show that if G is an elementary abelian 3-group of n Ž . order 3 , then G is n y 1 -good.
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