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arxiv: 1303.3810 · v2 · pith:GJBKOO5Fnew · submitted 2013-03-15 · 🧮 math.DS · math.GN

Continuous images of Cantor's ternary set

classification 🧮 math.DS math.GN
keywords continuouscantorcompactternaryimagespacecountablyhausdorff
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The Hausdorff-Alexandroff Theorem states that any compact metric space is the continuous image of Cantor's ternary set $C$. It is well known that there are compact Hausdorff spaces of cardinality equal to that of $C$ that are not continuous images of Cantor's ternary set. On the other hand, every compact countably infinite Hausdorff space is a continuous image of $C$. Here we present a compact countably infinite non-Hausdorff space which is not the continuous image of Cantor's ternary set.

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