We investigate the group of orientation-preserving auto-homeomorphisms resp. homotopy self-equivalences of the connected sum X of p copies of S^1 x S^n, for p greater than or equal 1, modulo those pseudo-isotopic resp. homotopic to the identity. This result is related to a paper of Hosokawa and Kawauchi on unknotted surfaces in Euclidean 4-space, published in Osaka J. Math. 16 (1979), extending it (in greater generality) for embeddings of X into Euclidean (n+3)-space. Finally, we classify the homotopy type of the complement of an embedded copy of X into the Euclidean (n+3)-space, giving examples of manifolds homotopy equivalent to a bouquet of spheres which cannot be fibered over a circle.
Topological properties of high-dimensional handles / Cavicchioli, Alberto; F., Hegenbarth; Spaggiari, Fulvia. - In: CAHIERS DE TOPOLOGIE ET GÉOMÉTRIE DIFFÉRENTIELLE CATÉGORIQUES. - ISSN 1245-530X. - STAMPA. - 39-1:(1998), pp. 45-62.
Topological properties of high-dimensional handles
CAVICCHIOLI, Alberto;SPAGGIARI, Fulvia
1998
Abstract
We investigate the group of orientation-preserving auto-homeomorphisms resp. homotopy self-equivalences of the connected sum X of p copies of S^1 x S^n, for p greater than or equal 1, modulo those pseudo-isotopic resp. homotopic to the identity. This result is related to a paper of Hosokawa and Kawauchi on unknotted surfaces in Euclidean 4-space, published in Osaka J. Math. 16 (1979), extending it (in greater generality) for embeddings of X into Euclidean (n+3)-space. Finally, we classify the homotopy type of the complement of an embedded copy of X into the Euclidean (n+3)-space, giving examples of manifolds homotopy equivalent to a bouquet of spheres which cannot be fibered over a circle.Pubblicazioni consigliate
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