Abstract
Some recent results on the near isomorphism category of finite rank Butler groups are surveyed. There are categorical connections with representations of finite posets over the integers localized at a prime p and the integers modulo a power of p. As results to date are limited, a number of problems and open questions are included.
Research supported in part by NSF grant #DMS 9101000
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Arnold, D.M. (1995). Near Isomorphism of Butler Groups and Representations of Finite Posets. In: Facchini, A., Menini, C. (eds) Abelian Groups and Modules. Mathematics and Its Applications, vol 343. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0443-2_3
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