Geodesic
Asymptotic algebra and outer conjugacy classes of automorphisms of factors
Izvestiya. Mathematics , Tome 16 (1981) no. 3, pp. 457-477.

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This paper studies the questions of the factorization and outer conjugacy of automorphisms of factors. A decomposition of automorphisms of factors into the tensor product of two factors, one of which is the standard automorphism of the Powers factor $R_\lambda$ ($0\lambda1$), is given. Complete systems of invariants for outer conjugacy aperiodic automorphisms of factors of type III$_0$ are found, emerging as crossed products of a factor $R_\lambda$ with discrete subgroups of its group of modular automorphisms. Examples of factors of type III with a number of new properties are constructed. Bibliography: 10 titles. 
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V. Ya. Golodets; N. I. Nessonov. Asymptotic algebra and outer conjugacy classes of automorphisms of factors. Izvestiya. Mathematics , Tome 16 (1981) no. 3, pp. 457-477. http://geodesic.mathdoc.fr/item/IM2_1981_16_3_a1/

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