Document Type

Article

Publication Date

9-1998

Abstract

Given an irreducible inclusion of factors with finite index N ⊂ M, where M is of type IIIλ1/m, N of type IIIλ1/n, 0 < λ < 1, and m,n are relatively prime positive integers, we will prove that if N ⊂ M satisfies a commuting square condition, then its structure can be characterized by using fixed point algebras and crossed products of automorphisms acting on the middle inclusion of factors associated with N ⊂ M. Relations between N ⊂ M and a certain G-kernel on subfactors are also discussed.

Comments

First published in Proceedings of the American Mathematical Society 126.9 (1998), published by the American Mathematical Society.

DOI

10.1090/S0002-9939-98-04349-4

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