Invariant half-spaces for rank-one perturbations
Muller, Vladimir
Abstract
Open-access reader
Muller, Vladimir
Abstract
Open-access reader
If T is a bounded linear operator acting on an infinite-dimensional Banach space, then there exists and operator F of rank at most one and arbitrarily small norm such that T-F has an invariant subspace of infinite dimension and codimension. This improves results of Tcaciuc and other authors.
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If T is a bounded linear operator acting on an infinite-dimensional Banach space, then there exists and operator F of rank at most one and arbitrarily small norm such that T-F has an invariant subspace of infinite dimension and codimension. This improves results of Tcaciuc and other authors.
Key concepts: Codimension, Invariant subspace problem, Mathematics, Bounded operator, Invariant subspace, Bounded function, Invariant (physics), Banach space