| dc.contributor.author | Kavila, M. | |
| dc.contributor.author | Khalagai, J.M. | |
| dc.date.accessioned | 2013-06-13T11:12:14Z | |
| dc.date.available | 2013-06-13T11:12:14Z | |
| dc.date.issued | 2012 | |
| dc.identifier.citation | Kenya Journal of Sciences Series A Vol. 15 No.1, 2012 | en |
| dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/32962 | |
| dc.description.abstract | Two bounded linear operators A and B on a complex Hilbert space are said to ,1.-
commute for ,lEe provided that: AB = ABA. In this paper we look for some properties
satisfied by the operators A and B so that ,1.= 1. It is shown among other results that if one of
the operators raised to some power is normal and 0 does not belong to the interior of the
numerical range of the other operator then: A = 1
AMS 200 Mathematics Subject Classification 47B47 47 A30, 47B20 | en |
| dc.language.iso | en | en |
| dc.subject | Numerical range and normal operator | en |
| dc.title | On A-Commuting Operators | en |
| dc.type | Article | en |
| local.publisher | School of Mathematics, University of Nairobi, | en |
