University of Cambridge > Talks.cam > Junior Algebra and Number Theory seminar > Canonical filtrations of coordinate rings of varieties with non-reductive automorphism group

  Browse A-Z

Log in

Googledetails Microsoftdetails

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

Canonical filtrations of coordinate rings of varieties with non-reductive automorphism group

Download to your calendar using vCal

  • UserRuadhai Dervan
  • ClockFriday 07 November 2014, 15:00-16:00
  • HouseCMS, MR13.

If you have a question about this talk, please contact Julian Brough .

To each filtration of the coordinate ring of a variety one can associate a certain weight. K-stability means that for each filtration this weight is positive, and K-instability has important geometric consequences. Given a variety with non-reductive automorphism group we construct a canonical filtration of its coordinate ring. We show that the corresponding weight is negative in several examples, and conjecture this holds in general. Little to no knowledge of algebraic geometry will be assumed for this talk. This is joint work with Giulio Codogni.

This talk is part of the Junior Algebra and Number Theory seminar series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Los Angeles Seminar Room, Tennis Court Road, Dept of Pathology. Madingley Conversations

Other talks

TBC Talk TBC Morning Break Cambridge AI in Medicine Seminar - July 2026 Seminars in Cancer Topic Film, TV shows for Medical Education, ‘The Wire’ as a case study
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity