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Analytic and Luzin spaces (non-separable case)
Authors:Z Frolík  P Holický
Institution:MÚ ?SAV, 10100, Praha 1, Czechoslovakia;VZLU Letňany, 19905, Praha 9, Czechoslovakia
Abstract:We introduce the concept of κ-analytic and κ-Luzin spaces as images of complete metric spaces by (disjoint) upper semi-continuous compact-valued correspondences which “preserve discreteness” in some sence (Definition in Section 3.1). The case κ = ω coincides with (Lindelöf) analytic spaces studied by Choquet, the first author and others. The main results are characterizations of uniform analytic spaces in terms of other parametrizations, complete sequences of covers, and Suslin subsets of some product of a compact and a complete metric space (Theorems in Section 3.2 and in Section 4), and characterizations of topological analytic spaces as Suslin subsets of paracompact ?ech-complete spaces (Theorem in Section 5).
Keywords:Primary 28A05  Secondary 54C99  59D18  Baire space  upper semi-continuous compact-valued correspondence  κ-analytic (κ-Luzin) space  complete sequence of covers  Suslin set  paracompactness  σ-odd-preserving correspondence
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