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SUMMARY:Canonical filtrations of coordinate rings of varieties with non-re
 ductive automorphism group - Ruadhai Dervan
DTSTART:20141107T150000Z
DTEND:20141107T160000Z
UID:TALK56120@talks.cam.ac.uk
CONTACT:Julian Brough
DESCRIPTION:To each filtration of the coordinate ring of a variety one can
  associate a certain weight. K-stability means that for each filtration th
 is weight is positive\, and K-instability has important geometric conseque
 nces. Given a variety with non-reductive automorphism group we construct a
  canonical filtration of its coordinate ring. We show that the correspondi
 ng weight is negative in several examples\, and conjecture this holds in g
 eneral. Little to no knowledge of algebraic geometry will be assumed for t
 his talk. This is joint work with Giulio Codogni.
LOCATION:CMS\, MR13
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