Hyperinvariant Subspace Problem for Some Classes of Operators
Sign Up to like & getrecommendations! Published in 2018 at "Mediterranean Journal of Mathematics"
DOI: 10.1007/s00009-018-1230-9
Abstract: An n-normal operator may be defined as an $$n \times n$$n×n operator matrix with entries that are mutually commuting normal operators and an operator $$T \in \mathcal {B(H)}$$T∈B(H) is quasi-nM-hyponormal (for $$n \in \mathbb {N}$$n∈N)… read more here.
Keywords: hyperinvariant subspace; operator matrix; subspace problem;
The invariant subspace problem for non-Archimedean Köthe spaces
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mathematical Analysis and Applications"
DOI: 10.1016/j.jmaa.2017.04.034
Abstract: Abstract In this study, a proof is given that if a non-Archimedean Kothe space Λ, which is generated by an infinite matrix B = ( b n k ) k , n ∈ N such… read more here.
Keywords: subspace problem; non archimedean; archimedean spaces; invariant subspace ... See more keywords