Research output: Contribution to journal › Article

Journal | Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences |
---|---|

Date | Published - Jan 2002 |

Issue number | 2017 |

Volume | 458 |

Number of pages | 9 |

Pages (from-to) | 109-118 |

Original language | English |

We explore commutativity up to a factor, AB = uBA, for bounded operators in a complex Hilbert space. Conditions on the possible values of the factor u are formulated and shown to depend on spectral properties of the operators involved. Commutativity up to a unitary factor is considered for pairs of self-adjoint operators. Examples of non-trivial realizations of such commutation relations are given.

Find related publications, people, projects, datasets and more using interactive charts.