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arXiv · 1109.1668

On diffeomorphisms over non-orientable surfaces standardly embedded in the 4-sphere

Susumu Hirose
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Abstract

For a non-orientable closed surface standardly embedded in the 4-sphere, a diffeomorphism over this surface is extendable if and only if this diffeomorphism preserves the Guillou-Marin quadratic form of this embedded surface.

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Susumu Hirose. 2011-09-08. On diffeomorphisms over non-orientable surfaces standardly embedded in the 4-sphere. https://doi.org/10.2140/agt.2012.12.109

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