### Abstract

A unit preserving *-endomorphism a on the hyperfinite II j factor R is called a shift if. A shift o is called Powers’ binary shift if there is a self-adjoint unitary u such that. Let q(ॣ) be the number min. It is shown that the number q(ॣ) is not the complete outer conjugacy invariant for Powers* binary shifts.

Original language | English |
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Pages (from-to) | 371-374 |

Number of pages | 4 |

Journal | Proceedings of the American Mathematical Society |

Volume | 105 |

Issue number | 2 |

DOIs | |

Publication status | Published - Feb 1989 |

### All Science Journal Classification (ASJC) codes

- Mathematics(all)
- Applied Mathematics

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## Cite this

Enomoto, M., & Watatani, Y. (1989). Powers’ binary shifts on the hyperfinite factor of type ii.

*Proceedings of the American Mathematical Society*,*105*(2), 371-374. https://doi.org/10.1090/S0002-9939-1989-0938911-6