Group actions on exotic spheres

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• J.D. Quigley (University of Virginia)
• Friday 16 May 2025, 10:15-11:15
• Seminar Room 1, Newton Institute.

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EHTW03 - New horizons for equivariance in homotopy theory

An exotic sphere is a smooth manifold which is homeomorphic, but not diffeomorphic, to a sphere with its standard smooth structure. There are many exotic spheres, but relatively little is known about their geometry (e.g., smooth transformation groups, curvature). This talk will describe some recent work detecting smooth rotational symmetries of exotic spheres using stable homotopy theory. 

This talk is part of the Isaac Newton Institute Seminar Series series.

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