Splitting Classes in Categories of Groups

نویسندگان

  • H. G. Grundman
  • D. Soltis
چکیده

The ideas behind splitting classes were introduced by Freyd and Scedrov in [1] and expanded by Lippincott in [2]. In the latter work, Lippincott proves that there are exactly six splitting class pairs in the category of sets, but uncountably many in the category of groups. In this paper, we prove much more generally that any category containing the category of finite abelian p-groups as a full subcategory, for some prime p, has uncountably many splitting class pairs.

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تاریخ انتشار 2007