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Apr. 17 colloquium: Oscar Randal-Williams (Cambridge)
Title: Symmetries of manifolds
Abstract: Whenever one studies a mathematical object one ought also to study its symmetries. Manifolds are the central objects of study in topology and geometry, and their groups of symmetries come in many flavours (isometries, diffeomorphisms, homeomorphisms, …). I will discuss some classical and recent results about the spaces of all symmetries of certain simple manifolds, and report on an emerging conjectural picture.
Time and location: Wed. Apr. 17, 4:30-5:30pm, Math 520. Tea will be served in the Math lounge at 4pm.
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