Abstract
A relation between positive commutators and absolutely continuous spectrum is obtained. If i[Y, Z] = 2Y holds on a core for Z and if Y is positive then we have a system of imprimitivity for the group on , from which it follows that Y has no singular continuous spectrum.
| Original language | English |
|---|---|
| Pages (from-to) | 420-427 |
| Number of pages | 8 |
| Journal | Journal of the Australian Mathematical Society Series B-Applied Mathematics |
| Volume | 23 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1982 |