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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Pure Maths Colloquium: Property tau

Presented by Marc Lackenby (Oxford),

20 February 2006 16:00 in CM221

"How can one construct computer networks without bottlenecks? Is there a method of efficiently shuffling a pack of cards? How does the spectrum of the Laplacian on a manifold behave under finite-sheeted covers? How can one detect `large' groups? Do hyperbolic 3-manifolds contain essential surfaces? In my talk, I will show how these questions are all related to an intriguing concept known as `Property tau'."

Contact anna.felikson@durham.ac.uk for more information