eBook ISBN: | 978-1-4704-0593-9 |
Product Code: | MEMO/208/979.E |
List Price: | $61.00 |
MAA Member Price: | $54.90 |
AMS Member Price: | $36.60 |
eBook ISBN: | 978-1-4704-0593-9 |
Product Code: | MEMO/208/979.E |
List Price: | $61.00 |
MAA Member Price: | $54.90 |
AMS Member Price: | $36.60 |
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Book DetailsMemoirs of the American Mathematical SocietyVolume: 208; 2010; 62 ppMSC: Primary 57; 54
Let \(M\) be either a topological manifold, a Hilbert cube manifold, or a Menger manifold and let \(D\) be an arbitrary countable dense subset of \(M\). Consider the topological group \(\mathcal{H}(M,D)\) which consists of all autohomeomorphisms of \(M\) that map \(D\) onto itself equipped with the compact-open topology. The authors present a complete solution to the topological classification problem for \(\mathcal{H}(M,D)\) as follows. If \(M\) is a one-dimensional topological manifold, then they proved in an earlier paper that \(\mathcal{H}(M,D)\) is homeomorphic to \(\mathbb{Q}^\omega\), the countable power of the space of rational numbers. In all other cases they find in this paper that \(\mathcal{H}(M,D)\) is homeomorphic to the famed Erdős space \(\mathfrak E\), which consists of the vectors in Hilbert space \(\ell^2\) with rational coordinates. They obtain the second result by developing topological characterizations of Erdős space.
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Table of Contents
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Chapters
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1. Introduction
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2. Erdős space and almost zero-dimensionality
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3. Trees and $\mathbb {R}$-trees
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4. Semi-continuous functions
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5. Cohesion
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6. Unknotting Lelek functions
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7. Extrinsic characterizations of Erdős space
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8. Intrinsic characterizations of Erdős space
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9. Factoring Erdős space
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10. Groups of homeomorphisms
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Let \(M\) be either a topological manifold, a Hilbert cube manifold, or a Menger manifold and let \(D\) be an arbitrary countable dense subset of \(M\). Consider the topological group \(\mathcal{H}(M,D)\) which consists of all autohomeomorphisms of \(M\) that map \(D\) onto itself equipped with the compact-open topology. The authors present a complete solution to the topological classification problem for \(\mathcal{H}(M,D)\) as follows. If \(M\) is a one-dimensional topological manifold, then they proved in an earlier paper that \(\mathcal{H}(M,D)\) is homeomorphic to \(\mathbb{Q}^\omega\), the countable power of the space of rational numbers. In all other cases they find in this paper that \(\mathcal{H}(M,D)\) is homeomorphic to the famed Erdős space \(\mathfrak E\), which consists of the vectors in Hilbert space \(\ell^2\) with rational coordinates. They obtain the second result by developing topological characterizations of Erdős space.
-
Chapters
-
1. Introduction
-
2. Erdős space and almost zero-dimensionality
-
3. Trees and $\mathbb {R}$-trees
-
4. Semi-continuous functions
-
5. Cohesion
-
6. Unknotting Lelek functions
-
7. Extrinsic characterizations of Erdős space
-
8. Intrinsic characterizations of Erdős space
-
9. Factoring Erdős space
-
10. Groups of homeomorphisms