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Power partial isometries https://arxiv.org/abs/2503.22707 #mathFA #mathCV #mathOA

Power partial isometries

In this paper we obtain a complete characterization of reducing, invariant, and hyperinvariant subspaces for the completely non-unitary component of a power partial isometry. In particular, precise characterization of reducing, invariant, and hyperinvariant subspaces of a truncated shift operator has been achieved.

arXiv.org
April 2, 2025 at 3:10 AM · · feed2toot · 0 · 0 · 0
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