Erdős space and homeomorphism groups of manifolds
著者
書誌事項
Erdős space and homeomorphism groups of manifolds
（Memoirs of the American Mathematical Society, no. 979）
American Mathematical Society, c2010
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注記
"Volume 208, number 979 (fourth of 6 numbers)."
Includes bibliographical references (p. 61-62)
内容説明・目次
内容説明
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 Erdos 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 Erdos space.
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