Ordinals and set-valued zero-selections for hyperspaces
نویسندگان
چکیده
منابع مشابه
Σ-products and selections of set-valued mappings
Every lower semi-continuous closed-and-convex valued mapping Φ : X → 2 , where X is a Σ-product of metrizable spaces and Y is a Hilbert space, has a single-valued continuous selection. This improves an earlier result of the author.
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ژورنال
عنوان ژورنال: Topology and its Applications
سال: 2009
ISSN: 0166-8641
DOI: 10.1016/j.topol.2008.12.003