Abstract
We prove that ifT is a strictly singular one-to-one operator defined on an infinite dimensional Banach spaceX, then for every infinite dimensional subspaceY ofX there exists an infinite dimensional subspaceZ ofX such thatZ∩Y is infinite dimensional,Z contains orbits ofT of every finite length and the restriction ofT toZ is a compact operator.
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The research was partially supported by NSF.
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Androulakis, G., Enflo, P. A property of strictly singular one-to-one operators. Ark. Mat. 41, 233–252 (2003). https://doi.org/10.1007/BF02390813
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DOI: https://doi.org/10.1007/BF02390813