Recent perspectives on the Invariant Subspace Problem

Published 29 Jul 2025 in math.FA | (2507.21834v1)

Abstract: We review recent work connected with the invariant subspace problem for operators, in particular new developments in the last 15 years. In particular, we include discussions of almost-invariant subspaces, universal operators, specific classes of operators and new results in the framework of Banach spaces.

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