Codimension 2 fibrators that are closed under finite product

Young Ho Im, Mee Kwang Kang and Ki Mun Woo

International Journal of Mathematics and Mathematical Sciences, 1998, vol. 21, 1-4

Abstract:

In this paper, we show that if N m is a closed manifold with hyperhopfian fundamental group, π i ( N ) = 0 for 1 < i ≤ n and S n is a simply connected manifold, then N m × S n satisfies the property that all proper, surjective maps from an orientable ( n + 2 ) -manifold M to a 2 -manifold B for which each p − 1 ( b ) is homotopy equivalent to N m × S n necessarily are approximate fibrations.

Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:712780

DOI: 10.1155/S0161171298001124

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