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Concerning locally homotopy negligible sets and characterization of \(\ell_ 2\)-manifolds. (English) Zbl 0406.55003


MSC:

55M15 Absolute neighborhood retracts
54E50 Complete metric spaces
54C55 Absolute neighborhood extensor, absolute extensor, absolute neighborhood retract (ANR), absolute retract spaces (general properties)
58B05 Homotopy and topological questions for infinite-dimensional manifolds
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