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arxiv: 1501.05985 · v1 · pith:H5HEZLD4new · submitted 2015-01-24 · 🧮 math.CV · math.FA

Invariant subspaces of the shift plus complex Volterra operator

classification 🧮 math.CV math.FA
keywords invariantoperatorsubspacesvolterraclosedlatticeplusshift
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The lattice of closed invariant subspaces of the Volterra operator acting on $L^2(0,1)$ was completely described by Sarason. On the other hand, he explicitly found the lattice of closed invariant subspaces of the shift plus Volterra operator on $L^2(0,1)$. Inspired by Sarason's results, we find the lattice of closed invariant subspaces of the shift plus complex Volterra operator acting on the Hardy space

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