G-modules: Stable Categories and Subcoalgebras.

Eric Friedlander
University of Southern California (USC)

We consider representations of affine group schemes G over a field k. For linear
algebraic groups G, we have formulated a stable module category for arbitrary Gmodules linked with a support theory for G-modules. We complement this support
theory by considering filtrations of G-modules associated to ascending, converging
sequences of subcoalgebras of the coordinate algebra O(G) of G.

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