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arXiv · 0811.1551

Maximal Levi Subgroups Acting on the Building of GL_n(F)

Jonathan Needleman
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Abstract

In this paper we give a complete invariant of the action of GL_n(F)\times GL_m(F) acting on the Euclidean building B[GL_n(F)], where F is a non-archimedian field. We then use this invariant to give a natural metric on the resulting quotient space. In the special case of the torus acting on B[GL_2(F)] this gives a method of calculating of any vertex to any fixed apartment.

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Jonathan Needleman. 2008-11-10. Maximal Levi Subgroups Acting on the Building of GL_n(F). https://arxiv.org/abs/0811.1551

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