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Codimension one spheres which are null homotopic

Laurence R. Taylor
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Abstract

This paper classifies embedded, codimension-one spheres which are null homotopic. This information is used to show that all null homotopic, immersed codimension-one spheres which are taut in the sense of Terng and Thorbergsson are actually distance spheres.

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Laurence R. Taylor. 1998-08-06. Codimension one spheres which are null homotopic. https://doi.org/10.1090/conm%2F258%2F1778118

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