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Differentiability of torsion theories

Lia Vas

math.RAarXiv:math/0702530

Abstract

We prove that every perfect torsion theory for a ring R is differential (in the sense of [P. E. Bland, Differential torsion theory, Journal of Pure and Applied Algebra 204 (2006) 1 -- 8]). In this case, we construct the extension of a derivation of a right R-module M to a derivation of the module of quotients of M. Then, we prove that the Lambek and Goldie torsion theories for any R are differential.

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