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| ISSN 1088-6826 (e) ISSN 0002-9939 (p) | |||
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The span for Hausdorff continua
Author(s):
Antonio
Peláez
Abstract | References | Similar articles | Additional information Abstract: The author previously defined the surjective semispan for Hausdorff continua and he proved that chainable continua have empty surjective semispan. In this paper, we define the semispan, the surjective span and the span of a Hausdorff continuum. We characterize the emptiness of these notions in terms of universal mappings to prove that a continuum has empty span (semispan) if and only if each of its subcontinua has empty surjective span (semispan). We also prove that the emptiness of these notions is invariant under inverse limits.
Retrieve articles in Proceedings of the American Mathematical Society with MSC (2000): 54F15, 54H25, 54E15 Retrieve articles in all Journals with MSC (2000): 54F15, 54H25, 54E15
Antonio
Peláez
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