Invariant subspace problem

GPTKB entity

Statements (19)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:concerns operators on Hilbert spaces
gptkbp:field functional analysis
gptkbp:formedBy gptkb:Paul_Halmos
1950s
https://www.w3.org/2000/01/rdf-schema#label Invariant subspace problem
gptkbp:notablePartialResult affirmative answer for compact operators
affirmative answer for normal operators
affirmative answer for some Banach spaces
affirmative answer for polynomially compact operators
gptkbp:relatedTo gptkb:Hilbert_space
linear operator
invariant subspace
gptkbp:seeAlso Invariant subspace theorem
Lomonosov's theorem
gptkbp:status open (as of 2024)
gptkbp:type Does every bounded linear operator on a separable infinite-dimensional Hilbert space have a non-trivial closed invariant subspace?
gptkbp:bfsParent gptkb:Nest_Algebras
gptkbp:bfsLayer 7