Graded unipotent groups and Grosshans theory

Let U be a unipotent group which is graded in the sense that it has an extension H by the multiplicative group of the complex numbers such that all the weights of the adjoint action on the Lie algebra of U are strictly positive. We study embeddings of H in a general linear group G which possess Gros...

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Bibliographic Details
Main Authors: Berczi, G, Kirwan, F
Format: Journal article
Published: Cambridge University Press 2017