BIRS Workshop Lecture Videos

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BIRS Workshop Lecture Videos

The 4-Dimensional Light Bulb Theorem Gabai, David


We generalize the classical light bulb theorem to four dimensions. I.e. a smooth 2-sphere in $S^2\times S^2$ that intersects $S^2\times 0$ once and is homologous to $0\times S^2$ is smoothly isotopically standard.

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