Krengel-Lin decomposition for probability measures on hypergroups
| dc.creator | Raja, C. R. E. | |
| dc.date | 2002-12-20 | |
| dc.date.accessioned | 2026-07-07T04:53:57Z | |
| dc.date.available | 2026-07-07T04:53:57Z | |
| dc.description | A Markov operator $P$ on a $σ$-finite measure space $(X, Σ, m)$ with invariant measure $m$ is said to have Krengel-Lin decomposition if $L^2 (X) = E_0 \oplus L^2 (X,Σ_d)$ where $E_0 = \{f \in L^2 (X) \mid ||P^n (f) || \ra 0 \}$ and $Σ_d$ is the deterministic $σ$-field of $P$. We consider convolution operators and we show that a measure $\lam$ on a hypergroup has Krengel-Lin decomposition if and only if the sequence $(\check \lam ^n *\lam ^n)$ converges to an idempotent or $\lam$ is scattered. We verify this condition for probabilities on Tortrat groups, on commutative hypergroups and on central hypergroups. We give a counter-example to show that the decomposition is not true for measures on discrete hypergroups which is in contrast to the discrete groups case. | |
| dc.identifier | https://arxiv.org/abs/math/0212285 | |
| dc.identifier | http://arxiv.org/abs/math/0212285 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/66054 | |
| dc.subject | Probability | |
| dc.subject | Functional Analysis | |
| dc.subject | 43A62, 60B99 | |
| dc.title | Krengel-Lin decomposition for probability measures on hypergroups | |
| dc.type | text |