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Shrinking of toroidal decomposition spaces

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Kasprowski D., Powell M.

Fundamenta Mathematicae

2014

tom 227

nr 3

271-296

Given a sequence of oriented links L¹,L²,L³,... each of which has a distinguished, unknotted component, there is a decomposition space 𝓓 of S³ naturally associated to it, which is constructed as the components of the intersection of an infinite sequence of nested solid tori. The Bing and Whitehead continua are simple, well known examples. We give a necessary and sufficient criterion to determine whether 𝓓 is shrinkable, generalising previous work of F. Ancel and M. Starbird and others. This criterion can effectively determine, in many cases, whether the quotient map S³ → S³/𝓓 can be approximated by homeomorphisms.

Ograniczanie wyników

1 Fundamenta Mathematicae

1 Kasprowski D.

1 Powell M.

1 2014

Wyniki wyszukiwania

Shrinking of toroidal decomposition spaces