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Multipliers with closed range on commutative semisimple Banach algebras

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dc.contributor.departmentDepartment of Mathematics
dc.contributor.departmentDepartment of Mathematics
dc.contributor.kuauthorÜlger, Ali
dc.contributor.kuprofileFaculty Member
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.yokidN/A
dc.date.accessioned2024-11-09T23:38:50Z
dc.date.issued2002
dc.description.abstractLet A be a commutative semisimple Banach algebra, Delta(A) its Gelfand spectrum, T a multiplier on A and (T) over cap its Gelfand transform. We study the following problems. (a) When is delta(T) = inf {\(T) over cap (f)\ : f is an element of Delta(A), (T) over capT(f) not equal 0} < 0? (b) When is the range T (A) of T closed in A and does it have a bounded approximate identity? (c) How to characterize the idempotent multipliers in terms of subsets of Delta(A)?
dc.description.indexedbyWoS
dc.description.indexedbyScopus
dc.description.issue1
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume153
dc.identifier.doi10.4064/sm153-1-5
dc.identifier.issn0039-3223
dc.identifier.quartileQ3
dc.identifier.scopus2-s2.0-0036445843
dc.identifier.urihttp://dx.doi.org/10.4064/sm153-1-5
dc.identifier.urihttps://hdl.handle.net/20.500.14288/13009
dc.identifier.wos179157900005
dc.keywordsMultiplier
dc.keywordsSpectrum
dc.keywordsFourier algebra
dc.languageEnglish
dc.publisherPolish Acad Sciences Institute Mathematics
dc.sourceStudia Mathematica
dc.subjectMathematics
dc.titleMultipliers with closed range on commutative semisimple Banach algebras
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.authorid0000-0002-3377-8666
local.contributor.kuauthorÜlger, Ali
relation.isOrgUnitOfPublication2159b841-6c2d-4f54-b1d4-b6ba86edfdbe
relation.isOrgUnitOfPublication.latestForDiscovery2159b841-6c2d-4f54-b1d4-b6ba86edfdbe

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