1988
DOI: 10.1090/s0002-9939-1988-0962840-4
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Stable maps into the Hilbert cube

Abstract: ABSTRACT. A map into the Hubert cube is stable if each composition with projection onto a finite number of factors is stable.We prove that a map from a compact metric space into the Hubert cube is stable if and only if it is universal. As a consequence, the composition of a stable map with any self homeomorphism of the Hilbert cube is also stable.

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“…Here, π n : I ∞ → I n is the projection onto I n and S n−1 is the boundary of I n . On the other hand, a map f : X → I ∞ is essential if and only if f is universal (this fact was established in [12] for metrizable compact spaces, but the proof works for arbitrary compact spaces). Theorem 3.6.…”
Section: Now Definementioning
confidence: 99%
“…Here, π n : I ∞ → I n is the projection onto I n and S n−1 is the boundary of I n . On the other hand, a map f : X → I ∞ is essential if and only if f is universal (this fact was established in [12] for metrizable compact spaces, but the proof works for arbitrary compact spaces). Theorem 3.6.…”
Section: Now Definementioning
confidence: 99%