On Kreǐn's extension theory of non-negative operators

dc.contributor.authorHassi, Seppo
dc.contributor.authorMalamud, Mark
dc.contributor.authorSnoo, Henk de
dc.contributor.organizationfi=Vaasan yliopisto|en=University of Vaasa|
dc.date.accessioned2019-10-03T10:06:54Z
dc.date.accessioned2025-06-25T14:13:14Z
dc.date.available2019-10-03T10:06:54Z
dc.date.issued2002
dc.description.abstractThe famous M.G. Kreın’s extension theory of nonnegative operators is being presented in elementary terms, building on the completion of nonnegative operator blocks. The present treatment includes the refinements to the theory due to T. Ando and K. Nishio. Moreover, the extension theory not only includes the case of operator extensions but also the case of relation (multivalued-operator) extensions.-
dc.description.accessibilityfeatureei tietoa saavutettavuudesta
dc.format.bitstreamtrue
dc.format.extent33-
dc.identifier.olddbid10378
dc.identifier.oldhandle10024/9707
dc.identifier.urihttps://osuva.uwasa.fi/handle/11111/3776
dc.identifier.urnURN:NBN:fi-fe2019100330996-
dc.language.isoeng-
dc.publisherVaasan yliopisto-
dc.relation.ispartofseriesWorking papers of the University of Vaasa, Department of Mathematics and Statistics-
dc.relation.numberinseries1-
dc.source.identifierhttps://osuva.uwasa.fi/handle/10024/9707
dc.subject.olddisciplinefi=Matematiikka|sv=Matematik|en=Mathematics|-
dc.subject.ysomatematiikka-
dc.subject.ysooperaattorit (matematiikka)-
dc.titleOn Kreǐn's extension theory of non-negative operators-
dc.type.publicationworkingPaper-

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