Abstract
A group G is called divisible if every equation of the form nx = g, with n ∈ N* and g ∈ G, has a solution in G. If this holds only for those n which are powers of a fixed prime p, we obtain the notion of p-divisible group. A group R is reduced if it has no nonzero divisible subgroups. Note that if the equation nx = g has solutions then we also say that n divides g, and we write n|g. Obviously, if n and ord(g) are coprime then n|g. Clearly if g ∈ G, p ∈ P, and k ∈ N then p k|g if and only if k ≥ h p (g).
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Literatur
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© 2003 Springer Science+Business Media Dordrecht
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Călugăreanu, G., Breaz, S., Modoi, C., Pelea, C., Vălcan, D. (2003). Divisible groups. In: Exercises in Abelian Group Theory. Springer Texts in the Mathematical Sciences, vol 25. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0339-0_2
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DOI: https://doi.org/10.1007/978-94-017-0339-0_2
Publisher Name: Springer, Dordrecht
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