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In joint work with Dan Nakano, we attempt a classification
of endotrivial modules for finite group schemes. The endotrivial
module form part of the Picard group of self equivalences of the stable
category of module over the scheme. Of particular interest is the case
of the infinitesimal subgroups of algebraic groups.
After the seminar we will take the speaker to lunch. See the Algebra Seminar web page for information about other seminars in the series. Anthony Henderson anthonyh@maths.usyd.edu.au. |