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Interpretations of the Beurling–Lax–Halmos Theorem on invariant subspaces of the unilateral shift are explored using the language of Hilbert modules. Extensions and consequences are considered in both...
Variations on Fintushel-Stern Knot Surgery on 4-manifolds
Fintushel-Stern Knot Surgery 4-manifolds
2010/3/1
We discuss some consequences Fintushel-Stern `knot surgery' operation coming from its handlebody description. We give some generalizations of this operation and give a counterexample to their conjectu...