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Tuesday 23 June 2009, 10:00-11:00
Investigating $kG$-modules using nilpotent operators
â ī¸ Important: Algebraic Lie Theory
- đ¤ Speaker: Friedlander, E (Southern California)
- đ Date & Time: Tuesday 23 June 2009, 10:00 - 11:00
- đ Venue: Seminar Room 1, Newton Institute
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Mustapha Amrani
Abstract
This is a report of on-going work with Jon Carlson, Julia Pevtsova, and Andrei Suslin. Our object of study is the representation theory of $kG$ where $G$ is a finite group scheme. Following Quillen’s early work, first invariants involve cohomology and cohomological support varieties. These have interpretations in terms of 1-parameter subgroups and $pi$-points. Finer invariants arise from considering the Jordan type of nilpotent operators, leading to local Jordan types, generalized support varieties, and algebraic vector bundles on projective varieties.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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