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摘要


Let (X, T) and (Y, T*) be topological spaces and let F ⊂ Y^X. For each U ∈ T, V ∈ T*, let (U, V)={f ∈ F: f(U)⊂V}. Define the set S_(oo)={(U, V):U ∈ T and V ∈ T*}. Then S_(oo) is a subbasis for a topology, T_(oo) on F, which is called the open-open topology. We compare T_(oo) with other topologies and discuss its properties. We also show that T_(oo), on H(X), the collection of all self-homeomorphisms on X, is equivalent to the topology induced on H(X) by the Pervin quasi-uniformity on X.

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