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On the indecomposability of unit groups

✍ Scribed by E. Kleinert; Á. Del RíO


Publisher
Vandenhoeck & Ruprecht
Year
2001
Tongue
German
Weight
254 KB
Volume
71
Category
Article
ISSN
0025-5858

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On the orders of directly indecomposable
✍ Paul Erdös; Péter P. Pálfy 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 679 KB

We investigate the set of those integers n for which directly indecomposable groups of order n exist. For even n such groups are easily constructed. In contrast, we show that the density of the set of odd numbers with this property is zero. For each n we define a graph whose connected components des