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SUMMARY:Coarse Lipschitz embeddings of expander graphs and cotype - Baudie
 r\, F (Texas A&M)
DTSTART:20110114T163000Z
DTEND:20110114T173000Z
UID:TALK28827@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:In this talk we will discuss recent results of M. Ostrovskii a
 bout embeddings of graphs into graphs of bounded degree and Lipschitz embe
 ddings of expanders. Then we will show how we can adapt his construction t
 o prove that there exists a family of expander graphs whose coarse Lipschi
 tz embedding (a.k.a quasi-isometric embedding) into a Banach space forces 
 the target space to have trivial cotype. One wants to mention that the pro
 of does not require a ``metric cotype approach'' and uses only classical B
 anach space theory.\n
LOCATION:Seminar Room 1\, Newton Institute
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